# Perturbed-Attention Guidance [Perturbed-Attention Guidance (PAG)](https://ku-cvlab.github.io/Perturbed-Attention-Guidance/) is a new diffusion sampling guidance that improves sample quality across both unconditional and conditional settings, achieving this without requiring further training or the integration of external modules. PAG was introduced in [Self-Rectifying Diffusion Sampling with Perturbed-Attention Guidance](https://huggingface.co/papers/2403.17377) by Donghoon Ahn, Hyoungwon Cho, Jaewon Min, Wooseok Jang, Jungwoo Kim, SeonHwa Kim, Hyun Hee Park, Kyong Hwan Jin and Seungryong Kim. The abstract from the paper is: *Recent studies have demonstrated that diffusion models are capable of generating high-quality samples, but their quality heavily depends on sampling guidance techniques, such as classifier guidance (CG) and classifier-free guidance (CFG). These techniques are often not applicable in unconditional generation or in various downstream tasks such as image restoration. In this paper, we propose a novel sampling guidance, called Perturbed-Attention Guidance (PAG), which improves diffusion sample quality across both unconditional and conditional settings, achieving this without requiring additional training or the integration of external modules. PAG is designed to progressively enhance the structure of samples throughout the denoising process. It involves generating intermediate samples with degraded structure by substituting selected self-attention maps in diffusion U-Net with an identity matrix, by considering the self-attention mechanisms' ability to capture structural information, and guiding the denoising process away from these degraded samples. In both ADM and Stable Diffusion, PAG surprisingly improves sample quality in conditional and even unconditional scenarios. Moreover, PAG significantly improves the baseline performance in various downstream tasks where existing guidances such as CG or CFG cannot be fully utilized, including ControlNet with empty prompts and image restoration such as inpainting and deblurring.* PAG can be used by specifying the `pag_applied_layers` as a parameter when instantiating a PAG pipeline. It can be a single string or a list of strings. Each string can be a unique layer identifier or a regular expression to identify one or more layers. - Full identifier as a normal string: `down_blocks.2.attentions.0.transformer_blocks.0.attn1.processor` - Full identifier as a RegEx: `down_blocks.2.(attentions|motion_modules).0.transformer_blocks.0.attn1.processor` - Partial identifier as a RegEx: `down_blocks.2`, or `attn1` - List of identifiers (can be combo of strings and ReGex): `["blocks.1", "blocks.(14|20)", r"down_blocks\.(2,3)"]` > [!WARNING] > Since RegEx is supported as a way for matching layer identifiers, it is crucial to use it correctly otherwise there might be unexpected behaviour. The recommended way to use PAG is by specifying layers as `blocks.{layer_index}` and `blocks.({layer_index_1|layer_index_2|...})`. Using it in any other way, while doable, may bypass our basic validation checks and give you unexpected results. ## AnimateDiffPAGPipeline[[diffusers.AnimateDiffPAGPipeline]] #### diffusers.AnimateDiffPAGPipeline[[diffusers.AnimateDiffPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_animatediff.py#L89) Pipeline for text-to-video generation using [AnimateDiff](https://huggingface.co/docs/diffusers/en/api/pipelines/animatediff) and [Perturbed Attention Guidance](https://huggingface.co/docs/diffusers/en/using-diffusers/pag). This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.AnimateDiffPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_animatediff.py#L575[{"name": "prompt", "val": ": str | list[str] | None = None"}, {"name": "num_frames", "val": ": int | None = 16"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "guidance_scale", "val": ": float = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_videos_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "decode_chunk_size", "val": ": int = 16"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **height** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The height in pixels of the generated video. - **width** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The width in pixels of the generated video. - **num_frames** (`int`, *optional*, defaults to 16) -- The number of video frames that are generated. Defaults to 16 frames which at 8 frames per seconds amounts to 2 seconds of video. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality videos at the expense of slower inference. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[AnimateDiffPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/animatediff#diffusers.pipelines.animatediff.AnimateDiffPipelineOutput) or `tuple`If `return_dict` is `True`, [AnimateDiffPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/animatediff#diffusers.pipelines.animatediff.AnimateDiffPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated frames. The call function to the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AnimateDiffPAGPipeline, MotionAdapter, DDIMScheduler >>> from diffusers.utils import export_to_gif >>> model_id = "SG161222/Realistic_Vision_V5.1_noVAE" >>> motion_adapter_id = "guoyww/animatediff-motion-adapter-v1-5-2" >>> motion_adapter = MotionAdapter.from_pretrained(motion_adapter_id) >>> scheduler = DDIMScheduler.from_pretrained( ... model_id, subfolder="scheduler", beta_schedule="linear", steps_offset=1, clip_sample=False ... ) >>> pipe = AnimateDiffPAGPipeline.from_pretrained( ... model_id, ... motion_adapter=motion_adapter, ... scheduler=scheduler, ... pag_applied_layers=["mid"], ... torch_dtype=torch.float16, ... ).to("cuda") >>> video = pipe( ... prompt="car, futuristic cityscape with neon lights, street, no human", ... negative_prompt="low quality, bad quality", ... num_inference_steps=25, ... guidance_scale=6.0, ... pag_scale=3.0, ... generator=torch.Generator().manual_seed(42), ... ).frames[0] >>> export_to_gif(video, "animatediff_pag.gif") ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModel`) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer (`CLIPTokenizer`) : A [CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer) to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A [UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel) used to create a UNetMotionModel to denoise the encoded video latents. motion_adapter (`MotionAdapter`) : A `MotionAdapter` to be used in combination with `unet` to denoise the encoded video latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). **Returns:** `[AnimateDiffPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/animatediff#diffusers.pipelines.animatediff.AnimateDiffPipelineOutput) or `tuple`` If `return_dict` is `True`, [AnimateDiffPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/animatediff#diffusers.pipelines.animatediff.AnimateDiffPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated frames. #### encode_prompt[[diffusers.AnimateDiffPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_animatediff.py#L165) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. ## HunyuanDiTPAGPipeline[[diffusers.HunyuanDiTPAGPipeline]] #### diffusers.HunyuanDiTPAGPipeline[[diffusers.HunyuanDiTPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_hunyuandit.py#L152) Pipeline for English/Chinese-to-image generation using HunyuanDiT and [Perturbed Attention Guidance](https://huggingface.co/docs/diffusers/en/using-diffusers/pag). This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) HunyuanDiT uses two text encoders: [mT5](https://huggingface.co/google/mt5-base) and [bilingual CLIP](fine-tuned by ourselves) __call__diffusers.HunyuanDiTPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_hunyuandit.py#L579[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds_2", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds_2", "val": ": torch.Tensor | None = None"}, {"name": "prompt_attention_mask", "val": ": torch.Tensor | None = None"}, {"name": "prompt_attention_mask_2", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_attention_mask", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_attention_mask_2", "val": ": torch.Tensor | None = None"}, {"name": "output_type", "val": ": str = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int, dict], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "original_size", "val": ": tuple = (1024, 1024)"}, {"name": "target_size", "val": ": tuple = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "use_resolution_binning", "val": ": bool = True"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **height** (`int`) -- The height in pixels of the generated image. - **width** (`int`) -- The width in pixels of the generated image. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. This parameter is modulated by `strength`. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. The call function to the pipeline for generation with HunyuanDiT. Examples: ```python >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "Tencent-Hunyuan/HunyuanDiT-v1.2-Diffusers", ... torch_dtype=torch.float16, ... enable_pag=True, ... pag_applied_layers=[14], ... ).to("cuda") >>> # prompt = "an astronaut riding a horse" >>> prompt = "一个宇航员在骑马" >>> image = pipe(prompt, guidance_scale=4, pag_scale=3).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. We use `sdxl-vae-fp16-fix`. text_encoder (`~transformers.BertModel`, `~transformers.CLIPTextModel` | None) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). HunyuanDiT uses a fine-tuned [bilingual CLIP]. tokenizer (`~transformers.BertTokenizer`, `~transformers.CLIPTokenizer` | None) : A `BertTokenizer` or `CLIPTokenizer` to tokenize text. transformer ([HunyuanDiT2DModel](/docs/diffusers/v0.37.0/en/api/models/hunyuan_transformer2d#diffusers.HunyuanDiT2DModel)) : The HunyuanDiT model designed by Tencent Hunyuan. text_encoder_2 (`T5EncoderModel`) : The mT5 embedder. Specifically, it is 't5-v1_1-xxl'. tokenizer_2 (`T5Tokenizer`) : The tokenizer for the mT5 embedder. scheduler ([DDPMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddpm#diffusers.DDPMScheduler)) : A scheduler to be used in combination with HunyuanDiT to denoise the encoded image latents. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. #### encode_prompt[[diffusers.HunyuanDiTPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_hunyuandit.py#L258) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device dtype (`torch.dtype`) : torch dtype num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. prompt_attention_mask (`torch.Tensor`, *optional*) : Attention mask for the prompt. Required when `prompt_embeds` is passed directly. negative_prompt_attention_mask (`torch.Tensor`, *optional*) : Attention mask for the negative prompt. Required when `negative_prompt_embeds` is passed directly. max_sequence_length (`int`, *optional*) : maximum sequence length to use for the prompt. text_encoder_index (`int`, *optional*) : Index of the text encoder to use. `0` for clip and `1` for T5. ## KolorsPAGPipeline[[diffusers.KolorsPAGPipeline]] #### diffusers.KolorsPAGPipeline[[diffusers.KolorsPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_kolors.py#L128) Pipeline for text-to-image generation using Kolors. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) The pipeline also inherits the following loading methods: - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.KolorsPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_kolors.py#L665[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "denoising_end", "val": ": float | None = None"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "original_size", "val": ": tuple[int, int] | None = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}, {"name": "max_sequence_length", "val": ": int = 256"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **height** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The height in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [Kwai-Kolors/Kolors-diffusers](https://huggingface.co/Kwai-Kolors/Kolors-diffusers) and checkpoints that are not specifically fine-tuned on low resolutions. - **width** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The width in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [Kwai-Kolors/Kolors-diffusers](https://huggingface.co/Kwai-Kolors/Kolors-diffusers) and checkpoints that are not specifically fine-tuned on low resolutions. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **denoising_end** (`float`, *optional*) -- When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be completed before it is intentionally prematurely terminated. As a result, the returned sample will still retain a substantial amount of noise as determined by the discrete timesteps selected by the scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - **guidance_scale** (`float`, *optional*, defaults to 5.0) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **ip_adapter_image** -- (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. - **ip_adapter_image_embeds** (`list[torch.Tensor]`, *optional*) -- Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.kolors.KolorsPipelineOutput` instead of a plain tuple. - **cross_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- For most cases, `target_size` should be set to the desired height and width of the generated image. If not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a specific image resolution. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a target image resolution. It should be as same as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **callback_on_step_end** (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*) -- A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of each denoising step during the inference. with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used. - **max_sequence_length** (`int` defaults to 256) -- Maximum sequence length to use with the `prompt`.0`~pipelines.kolors.KolorsPipelineOutput` or `tuple``~pipelines.kolors.KolorsPipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "Kwai-Kolors/Kolors-diffusers", ... variant="fp16", ... torch_dtype=torch.float16, ... enable_pag=True, ... pag_applied_layers=["down.block_2.attentions_1", "up.block_0.attentions_1"], ... ) >>> pipe = pipe.to("cuda") >>> prompt = ( ... "A photo of a ladybug, macro, zoom, high quality, film, holding a wooden sign with the text 'KOLORS'" ... ) >>> image = pipe(prompt, guidance_scale=5.5, pag_scale=1.5).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`ChatGLMModel`) : Frozen text-encoder. Kolors uses [ChatGLM3-6B](https://huggingface.co/THUDM/chatglm3-6b). tokenizer (`ChatGLMTokenizer`) : Tokenizer of class [ChatGLMTokenizer](https://huggingface.co/THUDM/chatglm3-6b/blob/main/tokenization_chatglm.py). unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : Conditional U-Net architecture to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"False"`) : Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of `Kwai-Kolors/Kolors-diffusers`. pag_applied_layers (`str` or `list[str]``, *optional*, defaults to `"mid"`) : Set the transformer attention layers where to apply the perturbed attention guidance. Can be a string or a list of strings with "down", "mid", "up", a whole transformer block or specific transformer block attention layers, e.g.: ["mid"] ["down", "mid"] ["down", "mid", "up.block_1"] ["down", "mid", "up.block_1.attentions_0", "up.block_1.attentions_1"] **Returns:** ``~pipelines.kolors.KolorsPipelineOutput` or `tuple`` `~pipelines.kolors.KolorsPipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.KolorsPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_kolors.py#L216) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. max_sequence_length (`int` defaults to 256) : Maximum sequence length to use with the `prompt`. #### get_guidance_scale_embedding[[diffusers.KolorsPAGPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_kolors.py#L608) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionPAGInpaintPipeline[[diffusers.StableDiffusionPAGInpaintPipeline]] #### diffusers.StableDiffusionPAGInpaintPipeline[[diffusers.StableDiffusionPAGInpaintPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_inpaint.py#L184) Pipeline for text-to-image generation using Stable Diffusion. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionPAGInpaintPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_inpaint.py#L910[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "mask_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "masked_image_latents", "val": ": Tensor = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "padding_mask_crop", "val": ": int | None = None"}, {"name": "strength", "val": ": float = 0.9999"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "guidance_scale", "val": ": float = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **height** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The height in pixels of the generated image. - **width** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The width in pixels of the generated image. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. The call function to the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForInpainting >>> pipe = AutoPipelineForInpainting.from_pretrained( ... "stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16, enable_pag=True ... ) >>> pipe = pipe.to("cuda") >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" >>> init_image = load_image(img_url).convert("RGB") >>> mask_image = load_image(mask_url).convert("RGB") >>> prompt = "A majestic tiger sitting on a bench" >>> image = pipe( ... prompt=prompt, ... image=init_image, ... mask_image=mask_image, ... strength=0.8, ... num_inference_steps=50, ... guidance_scale=guidance_scale, ... generator=generator, ... pag_scale=pag_scale, ... ).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). safety_checker (`StableDiffusionSafetyChecker`) : Classification module that estimates whether generated images could be considered offensive or harmful. Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for more details about a model's potential harms. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. #### encode_prompt[[diffusers.StableDiffusionPAGInpaintPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_inpaint.py#L334) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionPAGInpaintPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_inpaint.py#L849) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionPAGPipeline[[diffusers.StableDiffusionPAGPipeline]] #### diffusers.StableDiffusionPAGPipeline[[diffusers.StableDiffusionPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd.py#L157) Pipeline for text-to-image generation using Stable Diffusion. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd.py#L745[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "guidance_scale", "val": ": float = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **height** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The height in pixels of the generated image. - **width** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The width in pixels of the generated image. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. The call function to the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16, enable_pag=True ... ) >>> pipe = pipe.to("cuda") >>> prompt = "a photo of an astronaut riding a horse on mars" >>> image = pipe(prompt, pag_scale=0.3).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). safety_checker (`StableDiffusionSafetyChecker`) : Classification module that estimates whether generated images could be considered offensive or harmful. Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for more details about a model's potential harms. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. #### encode_prompt[[diffusers.StableDiffusionPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd.py#L304) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionPAGPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd.py#L684) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionPAGImg2ImgPipeline[[diffusers.StableDiffusionPAGImg2ImgPipeline]] #### diffusers.StableDiffusionPAGImg2ImgPipeline[[diffusers.StableDiffusionPAGImg2ImgPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_img2img.py#L152) Pipeline for text-guided image-to-image generation using Stable Diffusion. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionPAGImg2ImgPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_img2img.py#L782[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "strength", "val": ": float = 0.8"}, {"name": "num_inference_steps", "val": ": int | None = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "guidance_scale", "val": ": float | None = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float | None = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "clip_skip", "val": ": int = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, or `list[np.ndarray]`) -- `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image latents as `image`, but if passing latents directly it is not encoded again. - **strength** (`float`, *optional*, defaults to 0.8) -- Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a starting point and more noise is added the higher the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 essentially ignores `image`. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. This parameter is modulated by `strength`. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. The call function to the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForImage2Image >>> from diffusers.utils import load_image >>> pipe = AutoPipelineForImage2Image.from_pretrained( ... "stable-diffusion-v1-5/stable-diffusion-v1-5", ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe = pipe.to("cuda") >>> url = "https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/aa_xl/000000009.png" >>> init_image = load_image(url).convert("RGB") >>> prompt = "a photo of an astronaut riding a horse on mars" >>> image = pipe(prompt, image=init_image, pag_scale=0.3).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). safety_checker (`StableDiffusionSafetyChecker`) : Classification module that estimates whether generated images could be considered offensive or harmful. Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for more details about a model's potential harms. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. #### encode_prompt[[diffusers.StableDiffusionPAGImg2ImgPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_img2img.py#L299) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionPAGImg2ImgPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_img2img.py#L725) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionControlNetPAGPipeline[[diffusers.StableDiffusionControlNetPAGPipeline]] #### diffusers.StableDiffusionControlNetPAGPipeline[[diffusers.StableDiffusionControlNetPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd.py#L168) Pipeline for text-to-image generation using Stable Diffusion with ControlNet guidance. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters encode_promptdiffusers.StableDiffusionControlNetPAGPipeline.encode_prompthttps://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd.py#L275[{"name": "prompt", "val": ""}, {"name": "device", "val": ""}, {"name": "num_images_per_prompt", "val": ""}, {"name": "do_classifier_free_guidance", "val": ""}, {"name": "negative_prompt", "val": " = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "lora_scale", "val": ": float | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}]- **prompt** (`str` or `list[str]`, *optional*) -- prompt to be encoded - **device** -- (`torch.device`): torch device - **num_images_per_prompt** (`int`) -- number of images that should be generated per prompt - **do_classifier_free_guidance** (`bool`) -- whether to use classifier free guidance or not - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **lora_scale** (`float`, *optional*) -- A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. - **clip_skip** (`int`, *optional*) -- Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings.0 Encodes the prompt into text encoder hidden states. **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. controlnet ([ControlNetModel](/docs/diffusers/v0.37.0/en/api/models/controlnet#diffusers.ControlNetModel) or `list[ControlNetModel]`) : Provides additional conditioning to the `unet` during the denoising process. If you set multiple ControlNets as a list, the outputs from each ControlNet are added together to create one combined additional conditioning. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). safety_checker (`StableDiffusionSafetyChecker`) : Classification module that estimates whether generated images could be considered offensive or harmful. Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for more details about a model's potential harms. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. #### get_guidance_scale_embedding[[diffusers.StableDiffusionControlNetPAGPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd.py#L810) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionControlNetPAGInpaintPipeline[[diffusers.StableDiffusionControlNetPAGInpaintPipeline]] #### diffusers.StableDiffusionControlNetPAGInpaintPipeline[[diffusers.StableDiffusionControlNetPAGInpaintPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_inpaint.py#L134) Pipeline for image inpainting using Stable Diffusion with ControlNet guidance. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters > [!TIP] > This pipeline can be used with checkpoints that have been specifically fine-tuned for inpainting > ([stable-diffusion-v1-5/stable-diffusion-inpainting](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-inpainting)) as well as > default text-to-image Stable Diffusion checkpoints > ([stable-diffusion-v1-5/stable-diffusion-v1-5](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5)). Default text-to-image > Stable Diffusion checkpoints might be preferable for ControlNets that have been fine-tuned on those, such as > [lllyasviel/control_v11p_sd15_inpaint](https://huggingface.co/lllyasviel/control_v11p_sd15_inpaint). __call__diffusers.StableDiffusionControlNetPAGInpaintPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_inpaint.py#L972[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "mask_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "control_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "padding_mask_crop", "val": ": int | None = None"}, {"name": "strength", "val": ": float = 1.0"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "guidance_scale", "val": ": float = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "controlnet_conditioning_scale", "val": ": float | list[float] = 0.5"}, {"name": "control_guidance_start", "val": ": float | list[float] = 0.0"}, {"name": "control_guidance_end", "val": ": float | list[float] = 1.0"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, -- `list[PIL.Image.Image]`, or `list[np.ndarray]`): `Image`, NumPy array or tensor representing an image batch to be used as the starting point. For both NumPy array and PyTorch tensor, the expected value range is between `[0, 1]`. If it's a tensor or a list or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a NumPy array or a list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)`. It can also accept image latents as `image`, but if passing latents directly it is not encoded again. - **mask_image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, -- `list[PIL.Image.Image]`, or `list[np.ndarray]`): `Image`, NumPy array or tensor representing an image batch to mask `image`. White pixels in the mask are repainted while black pixels are preserved. If `mask_image` is a PIL image, it is converted to a single channel (luminance) before use. If it's a NumPy array or PyTorch tensor, it should contain one color channel (L) instead of 3, so the expected shape for PyTorch tensor would be `(B, 1, H, W)`, `(B, H, W)`, `(1, H, W)`, `(H, W)`. And for NumPy array, it would be for `(B, H, W, 1)`, `(B, H, W)`, `(H, W, 1)`, or `(H, W)`. - **control_image** (`torch.Tensor`, `PIL.Image.Image`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, -- `list[list[torch.Tensor]]`, or `list[list[PIL.Image.Image]]`): The ControlNet input condition to provide guidance to the `unet` for generation. If the type is specified as `torch.Tensor`, it is passed to ControlNet as is. `PIL.Image.Image` can also be accepted as an image. The dimensions of the output image defaults to `image`'s dimensions. If height and/or width are passed, `image` is resized accordingly. If multiple ControlNets are specified in `init`, images must be passed as a list such that each element of the list can be correctly batched for input to a single ControlNet. - **height** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The height in pixels of the generated image. - **width** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The width in pixels of the generated image. - **padding_mask_crop** (`int`, *optional*, defaults to `None`) -- The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region with the same aspect ration of the image and contains all masked area, and then expand that area based on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before resizing to the original image size for inpainting. This is useful when the masked area is small while the image is large and contain information irrelevant for inpainting, such as background. - **strength** (`float`, *optional*, defaults to 1.0) -- Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a starting point and more noise is added the higher the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 essentially ignores `image`. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. The call function to the pipeline for generation. Examples: ```py >>> # !pip install transformers accelerate >>> import cv2 >>> from diffusers import AutoPipelineForInpainting, ControlNetModel, DDIMScheduler >>> from diffusers.utils import load_image >>> import numpy as np >>> from PIL import Image >>> import torch >>> init_image = load_image( ... "https://huggingface.co/datasets/diffusers/test-arrays/resolve/main/stable_diffusion_inpaint/boy.png" ... ) >>> init_image = init_image.resize((512, 512)) >>> generator = torch.Generator(device="cpu").manual_seed(1) >>> mask_image = load_image( ... "https://huggingface.co/datasets/diffusers/test-arrays/resolve/main/stable_diffusion_inpaint/boy_mask.png" ... ) >>> mask_image = mask_image.resize((512, 512)) >>> def make_canny_condition(image): ... image = np.array(image) ... image = cv2.Canny(image, 100, 200) ... image = image[:, :, None] ... image = np.concatenate([image, image, image], axis=2) ... image = Image.fromarray(image) ... return image >>> control_image = make_canny_condition(init_image) >>> controlnet = ControlNetModel.from_pretrained( ... "lllyasviel/control_v11p_sd15_inpaint", torch_dtype=torch.float16 ... ) >>> pipe = AutoPipelineForInpainting.from_pretrained( ... "stable-diffusion-v1-5/stable-diffusion-v1-5", ... controlnet=controlnet, ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe.scheduler = DDIMScheduler.from_config(pipe.scheduler.config) >>> pipe.enable_model_cpu_offload() >>> # generate image >>> image = pipe( ... "a handsome man with ray-ban sunglasses", ... num_inference_steps=20, ... generator=generator, ... eta=1.0, ... image=init_image, ... mask_image=mask_image, ... control_image=control_image, ... pag_scale=0.3, ... ).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. controlnet ([ControlNetModel](/docs/diffusers/v0.37.0/en/api/models/controlnet#diffusers.ControlNetModel) or `list[ControlNetModel]`) : Provides additional conditioning to the `unet` during the denoising process. If you set multiple ControlNets as a list, the outputs from each ControlNet are added together to create one combined additional conditioning. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). safety_checker (`StableDiffusionSafetyChecker`) : Classification module that estimates whether generated images could be considered offensive or harmful. Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for more details about a model's potential harms. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images and the second element is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. #### encode_prompt[[diffusers.StableDiffusionControlNetPAGInpaintPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_inpaint.py#L251) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionControlNetPAGInpaintPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_inpaint.py#L919) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionXLPAGPipeline[[diffusers.StableDiffusionXLPAGPipeline]] #### diffusers.StableDiffusionXLPAGPipeline[[diffusers.StableDiffusionXLPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl.py#L172) Pipeline for text-to-image generation using Stable Diffusion XL. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionXLPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl.py#L834[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "denoising_end", "val": ": float | None = None"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "original_size", "val": ": tuple[int, int] | None = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders - **height** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The height in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **width** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The width in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **denoising_end** (`float`, *optional*) -- When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be completed before it is intentionally prematurely terminated. As a result, the returned sample will still retain a substantial amount of noise as determined by the discrete timesteps selected by the scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - **guidance_scale** (`float`, *optional*, defaults to 5.0) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **ip_adapter_image** -- (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. - **ip_adapter_image_embeds** (`list[torch.Tensor]`, *optional*) -- Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` instead of a plain tuple. - **cross_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **guidance_rescale** (`float`, *optional*, defaults to 0.0) -- Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when using zero terminal SNR. - **original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- For most cases, `target_size` should be set to the desired height and width of the generated image. If not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a specific image resolution. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a target image resolution. It should be as same as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **callback_on_step_end** (`Callable`, *optional*) -- A function that calls at the end of each denoising steps during the inference. The function is called with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` or `tuple``~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "stabilityai/stable-diffusion-xl-base-1.0", ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe = pipe.to("cuda") >>> prompt = "a photo of an astronaut riding a horse on mars" >>> image = pipe(prompt, pag_scale=0.3).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModel`) : Frozen text-encoder. Stable Diffusion XL uses the text portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. text_encoder_2 (` CLIPTextModelWithProjection`) : Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : Conditional U-Net architecture to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`) : Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of `stabilityai/stable-diffusion-xl-base-1-0`. add_watermarker (`bool`, *optional*) : Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to watermark output images. If not defined, it will default to True if the package is installed, otherwise no watermarker will be used. **Returns:** ``~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` or `tuple`` `~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.StableDiffusionXLPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl.py#L293) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionXLPAGPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl.py#L769) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionXLPAGImg2ImgPipeline[[diffusers.StableDiffusionXLPAGImg2ImgPipeline]] #### diffusers.StableDiffusionXLPAGImg2ImgPipeline[[diffusers.StableDiffusionXLPAGImg2ImgPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_img2img.py#L191) Pipeline for text-to-image generation using Stable Diffusion XL. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionXLPAGImg2ImgPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_img2img.py#L987[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "strength", "val": ": float = 0.3"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "denoising_start", "val": ": float | None = None"}, {"name": "denoising_end", "val": ": float | None = None"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "original_size", "val": ": tuple = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "aesthetic_score", "val": ": float = 6.0"}, {"name": "negative_aesthetic_score", "val": ": float = 2.5"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders - **image** (`torch.Tensor` or `PIL.Image.Image` or `np.ndarray` or `list[torch.Tensor]` or `list[PIL.Image.Image]` or `list[np.ndarray]`) -- The image(s) to modify with the pipeline. - **strength** (`float`, *optional*, defaults to 0.3) -- Conceptually, indicates how much to transform the reference `image`. Must be between 0 and 1. `image` will be used as a starting point, adding more noise to it the larger the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise will be maximum and the denoising process will run for the full number of iterations specified in `num_inference_steps`. A value of 1, therefore, essentially ignores `image`. Note that in the case of `denoising_start` being declared as an integer, the value of `strength` will be ignored. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **denoising_start** (`float`, *optional*) -- When specified, indicates the fraction (between 0.0 and 1.0) of the total denoising process to be bypassed before it is initiated. Consequently, the initial part of the denoising process is skipped and it is assumed that the passed `image` is a partly denoised image. Note that when this is specified, strength will be ignored. The `denoising_start` parameter is particularly beneficial when this pipeline is integrated into a "Mixture of Denoisers" multi-pipeline setup, as detailed in [**Refine Image Quality**](https://huggingface.co/docs/diffusers/using-diffusers/sdxl#refine-image-quality). - **denoising_end** (`float`, *optional*) -- When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be completed before it is intentionally prematurely terminated. As a result, the returned sample will still retain a substantial amount of noise (ca. final 20% of timesteps still needed) and should be denoised by a successor pipeline that has `denoising_start` set to 0.8 so that it only denoises the final 20% of the scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refine Image Quality**](https://huggingface.co/docs/diffusers/using-diffusers/sdxl#refine-image-quality). - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **ip_adapter_image** -- (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. - **ip_adapter_image_embeds** (`list[torch.Tensor]`, *optional*) -- Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` instead of a plain tuple. - **cross_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **guidance_rescale** (`float`, *optional*, defaults to 0.0) -- Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of [Common Diffusion Noise Schedules and Sample Steps are Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when using zero terminal SNR. - **original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- For most cases, `target_size` should be set to the desired height and width of the generated image. If not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a specific image resolution. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a target image resolution. It should be as same as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **aesthetic_score** (`float`, *optional*, defaults to 6.0) -- Used to simulate an aesthetic score of the generated image by influencing the positive text condition. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_aesthetic_score** (`float`, *optional*, defaults to 2.5) -- Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to simulate an aesthetic score of the generated image by influencing the negative text condition. - **clip_skip** (`int`, *optional*) -- Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. - **callback_on_step_end** (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*) -- A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of each denoising step during the inference. with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForImage2Image >>> from diffusers.utils import load_image >>> pipe = AutoPipelineForImage2Image.from_pretrained( ... "stabilityai/stable-diffusion-xl-refiner-1.0", ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe = pipe.to("cuda") >>> url = "https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/aa_xl/000000009.png" >>> init_image = load_image(url).convert("RGB") >>> prompt = "a photo of an astronaut riding a horse on mars" >>> image = pipe(prompt, image=init_image, pag_scale=0.3).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModel`) : Frozen text-encoder. Stable Diffusion XL uses the text portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. text_encoder_2 (` CLIPTextModelWithProjection`) : Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : Conditional U-Net architecture to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`) : Whether the `unet` requires an `aesthetic_score` condition to be passed during inference. Also see the config of `stabilityai/stable-diffusion-xl-refiner-1-0`. force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`) : Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of `stabilityai/stable-diffusion-xl-base-1-0`. add_watermarker (`bool`, *optional*) : Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to watermark output images. If not defined, it will default to True if the package is installed, otherwise no watermarker will be used. **Returns:** ``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple`` `~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.StableDiffusionXLPAGImg2ImgPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_img2img.py#L311) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionXLPAGImg2ImgPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_img2img.py#L918) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionXLPAGInpaintPipeline[[diffusers.StableDiffusionXLPAGInpaintPipeline]] #### diffusers.StableDiffusionXLPAGInpaintPipeline[[diffusers.StableDiffusionXLPAGInpaintPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_inpaint.py#L204) Pipeline for text-to-image generation using Stable Diffusion XL. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionXLPAGInpaintPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_inpaint.py#L1078[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "mask_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "masked_image_latents", "val": ": Tensor = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "padding_mask_crop", "val": ": int | None = None"}, {"name": "strength", "val": ": float = 0.9999"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "denoising_start", "val": ": float | None = None"}, {"name": "denoising_end", "val": ": float | None = None"}, {"name": "guidance_scale", "val": ": float = 7.5"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "guidance_rescale", "val": ": float = 0.0"}, {"name": "original_size", "val": ": tuple = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "aesthetic_score", "val": ": float = 6.0"}, {"name": "negative_aesthetic_score", "val": ": float = 2.5"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders - **image** (`PIL.Image.Image`) -- `Image`, or tensor representing an image batch which will be inpainted, *i.e.* parts of the image will be masked out with `mask_image` and repainted according to `prompt`. - **mask_image** (`PIL.Image.Image`) -- `Image`, or tensor representing an image batch, to mask `image`. White pixels in the mask will be repainted, while black pixels will be preserved. If `mask_image` is a PIL image, it will be converted to a single channel (luminance) before use. If it's a tensor, it should contain one color channel (L) instead of 3, so the expected shape would be `(B, H, W, 1)`. - **height** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The height in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **width** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The width in pixels of the generated image. This is set to 1024 by default for the best results. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **padding_mask_crop** (`int`, *optional*, defaults to `None`) -- The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region with the same aspect ration of the image and contains all masked area, and then expand that area based on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before resizing to the original image size for inpainting. This is useful when the masked area is small while the image is large and contain information irrelevant for inpainting, such as background. - **strength** (`float`, *optional*, defaults to 0.9999) -- Conceptually, indicates how much to transform the masked portion of the reference `image`. Must be between 0 and 1. `image` will be used as a starting point, adding more noise to it the larger the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise will be maximum and the denoising process will run for the full number of iterations specified in `num_inference_steps`. A value of 1, therefore, essentially ignores the masked portion of the reference `image`. Note that in the case of `denoising_start` being declared as an integer, the value of `strength` will be ignored. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **denoising_start** (`float`, *optional*) -- When specified, indicates the fraction (between 0.0 and 1.0) of the total denoising process to be bypassed before it is initiated. Consequently, the initial part of the denoising process is skipped and it is assumed that the passed `image` is a partly denoised image. Note that when this is specified, strength will be ignored. The `denoising_start` parameter is particularly beneficial when this pipeline is integrated into a "Mixture of Denoisers" multi-pipeline setup, as detailed in [**Refining the Image Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output). - **denoising_end** (`float`, *optional*) -- When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be completed before it is intentionally prematurely terminated. As a result, the returned sample will still retain a substantial amount of noise (ca. final 20% of timesteps still needed) and should be denoised by a successor pipeline that has `denoising_start` set to 0.8 so that it only denoises the final 20% of the scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output). - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **ip_adapter_image** -- (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. - **ip_adapter_image_embeds** (`list[torch.Tensor]`, *optional*) -- Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) instead of a plain tuple. - **cross_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- For most cases, `target_size` should be set to the desired height and width of the generated image. If not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a specific image resolution. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a target image resolution. It should be as same as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **aesthetic_score** (`float`, *optional*, defaults to 6.0) -- Used to simulate an aesthetic score of the generated image by influencing the positive text condition. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_aesthetic_score** (`float`, *optional*, defaults to 2.5) -- Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to simulate an aesthetic score of the generated image by influencing the negative text condition. - **clip_skip** (`int`, *optional*) -- Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. - **callback_on_step_end** (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*) -- A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of each denoising step during the inference. with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple. `tuple. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForInpainting >>> from diffusers.utils import load_image >>> pipe = AutoPipelineForInpainting.from_pretrained( ... "stabilityai/stable-diffusion-xl-base-1.0", ... torch_dtype=torch.float16, ... variant="fp16", ... enable_pag=True, ... ) >>> pipe.to("cuda") >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" >>> init_image = load_image(img_url).convert("RGB") >>> mask_image = load_image(mask_url).convert("RGB") >>> prompt = "A majestic tiger sitting on a bench" >>> image = pipe( ... prompt=prompt, ... image=init_image, ... mask_image=mask_image, ... num_inference_steps=50, ... strength=0.80, ... pag_scale=0.3, ... ).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModel`) : Frozen text-encoder. Stable Diffusion XL uses the text portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. text_encoder_2 (` CLIPTextModelWithProjection`) : Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : Conditional U-Net architecture to denoise the encoded image latents. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`) : Whether the `unet` requires a aesthetic_score condition to be passed during inference. Also see the config of `stabilityai/stable-diffusion-xl-refiner-1-0`. force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`) : Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of `stabilityai/stable-diffusion-xl-base-1-0`. add_watermarker (`bool`, *optional*) : Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to watermark output images. If not defined, it will default to True if the package is installed, otherwise no watermarker will be used. **Returns:** ``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple`` `~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple. `tuple. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.StableDiffusionXLPAGInpaintPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_inpaint.py#L401) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionXLPAGInpaintPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_xl_inpaint.py#L1009) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionXLControlNetPAGPipeline[[diffusers.StableDiffusionXLControlNetPAGPipeline]] #### diffusers.StableDiffusionXLControlNetPAGPipeline[[diffusers.StableDiffusionXLControlNetPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl.py#L185) Pipeline for text-to-image generation using Stable Diffusion XL with ControlNet guidance. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular device, etc.). The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [from_single_file()](/docs/diffusers/v0.37.0/en/api/loaders/single_file#diffusers.loaders.FromSingleFileMixin.from_single_file) for loading `.ckpt` files - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionXLControlNetPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl.py#L1001[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "denoising_end", "val": ": float | None = None"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "controlnet_conditioning_scale", "val": ": float | list[float] = 1.0"}, {"name": "control_guidance_start", "val": ": float | list[float] = 0.0"}, {"name": "control_guidance_end", "val": ": float | list[float] = 1.0"}, {"name": "original_size", "val": ": tuple = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders. - **image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, `list[np.ndarray]`, -- `list[list[torch.Tensor]]`, `list[list[np.ndarray]]` or `list[list[PIL.Image.Image]]`): The ControlNet input condition to provide guidance to the `unet` for generation. If the type is specified as `torch.Tensor`, it is passed to ControlNet as is. `PIL.Image.Image` can also be accepted as an image. The dimensions of the output image defaults to `image`'s dimensions. If height and/or width are passed, `image` is resized accordingly. If multiple ControlNets are specified in `init`, images must be passed as a list such that each element of the list can be correctly batched for input to a single ControlNet. - **height** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The height in pixels of the generated image. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **width** (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`) -- The width in pixels of the generated image. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **denoising_end** (`float`, *optional*) -- When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be completed before it is intentionally prematurely terminated. As a result, the returned sample will still retain a substantial amount of noise as determined by the discrete timesteps selected by the scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) - **guidance_scale** (`float`, *optional*, defaults to 5.0) -- A higher guidance scale value encourages the model to generate images closely linked to the text `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide what to not include in image generation. If not defined, you need to pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale 0[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned containing the output images. The call function to the pipeline for generation. Examples: ```py >>> # !pip install opencv-python transformers accelerate >>> from diffusers import AutoPipelineForText2Image, ControlNetModel, AutoencoderKL >>> from diffusers.utils import load_image >>> import numpy as np >>> import torch >>> import cv2 >>> from PIL import Image >>> prompt = "aerial view, a futuristic research complex in a bright foggy jungle, hard lighting" >>> negative_prompt = "low quality, bad quality, sketches" >>> # download an image >>> image = load_image( ... "https://hf.co/datasets/hf-internal-testing/diffusers-images/resolve/main/sd_controlnet/hf-logo.png" ... ) >>> # initialize the models and pipeline >>> controlnet_conditioning_scale = 0.5 # recommended for good generalization >>> controlnet = ControlNetModel.from_pretrained( ... "diffusers/controlnet-canny-sdxl-1.0", torch_dtype=torch.float16 ... ) >>> vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16) >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "stabilityai/stable-diffusion-xl-base-1.0", ... controlnet=controlnet, ... vae=vae, ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe.enable_model_cpu_offload() >>> # get canny image >>> image = np.array(image) >>> image = cv2.Canny(image, 100, 200) >>> image = image[:, :, None] >>> image = np.concatenate([image, image, image], axis=2) >>> canny_image = Image.fromarray(image) >>> # generate image >>> image = pipe( ... prompt, controlnet_conditioning_scale=controlnet_conditioning_scale, image=canny_image, pag_scale=0.3 ... ).images[0] ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. text_encoder ([CLIPTextModel](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModel)) : Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). text_encoder_2 ([CLIPTextModelWithProjection](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTextModelWithProjection)) : Second frozen text-encoder ([laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k)). tokenizer ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. tokenizer_2 ([CLIPTokenizer](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPTokenizer)) : A `CLIPTokenizer` to tokenize text. unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : A `UNet2DConditionModel` to denoise the encoded image latents. controlnet ([ControlNetModel](/docs/diffusers/v0.37.0/en/api/models/controlnet#diffusers.ControlNetModel) or `list[ControlNetModel]`) : Provides additional conditioning to the `unet` during the denoising process. If you set multiple ControlNets as a list, the outputs from each ControlNet are added together to create one combined additional conditioning. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`) : Whether the negative prompt embeddings should always be set to 0. Also see the config of `stabilityai/stable-diffusion-xl-base-1-0`. add_watermarker (`bool`, *optional*) : Whether to use the [invisible_watermark](https://github.com/ShieldMnt/invisible-watermark/) library to watermark output images. If not defined, it defaults to `True` if the package is installed; otherwise no watermarker is used. **Returns:** `[StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) or `tuple`` If `return_dict` is `True`, [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) is returned, otherwise a `tuple` is returned containing the output images. #### encode_prompt[[diffusers.StableDiffusionXLControlNetPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl.py#L306) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. #### get_guidance_scale_embedding[[diffusers.StableDiffusionXLControlNetPAGPipeline.get_guidance_scale_embedding]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl.py#L944) See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 **Parameters:** w (`torch.Tensor`) : Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. embedding_dim (`int`, *optional*, defaults to 512) : Dimension of the embeddings to generate. dtype (`torch.dtype`, *optional*, defaults to `torch.float32`) : Data type of the generated embeddings. **Returns:** ``torch.Tensor`` Embedding vectors with shape `(len(w), embedding_dim)`. ## StableDiffusionXLControlNetPAGImg2ImgPipeline[[diffusers.StableDiffusionXLControlNetPAGImg2ImgPipeline]] #### diffusers.StableDiffusionXLControlNetPAGImg2ImgPipeline[[diffusers.StableDiffusionXLControlNetPAGImg2ImgPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl_img2img.py#L164) Pipeline for image-to-image generation using Stable Diffusion XL with ControlNet guidance. This model inherits from [DiffusionPipeline](/docs/diffusers/v0.37.0/en/api/pipelines/overview#diffusers.DiffusionPipeline). Check the superclass documentation for the generic methods the library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) The pipeline also inherits the following loading methods: - [load_textual_inversion()](/docs/diffusers/v0.37.0/en/api/loaders/textual_inversion#diffusers.loaders.TextualInversionLoaderMixin.load_textual_inversion) for loading textual inversion embeddings - [load_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights) for loading LoRA weights - [save_lora_weights()](/docs/diffusers/v0.37.0/en/api/loaders/lora#diffusers.loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights) for saving LoRA weights - [load_ip_adapter()](/docs/diffusers/v0.37.0/en/api/loaders/ip_adapter#diffusers.loaders.IPAdapterMixin.load_ip_adapter) for loading IP Adapters __call__diffusers.StableDiffusionXLControlNetPAGImg2ImgPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl_img2img.py#L1078[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "control_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "strength", "val": ": float = 0.8"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "guidance_scale", "val": ": float = 5.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "ip_adapter_image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] | None = None"}, {"name": "ip_adapter_image_embeds", "val": ": list[torch.Tensor] | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "cross_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "controlnet_conditioning_scale", "val": ": float | list[float] = 0.8"}, {"name": "guess_mode", "val": ": bool = False"}, {"name": "control_guidance_start", "val": ": float | list[float] = 0.0"}, {"name": "control_guidance_end", "val": ": float | list[float] = 1.0"}, {"name": "original_size", "val": ": tuple = None"}, {"name": "crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "target_size", "val": ": tuple = None"}, {"name": "negative_original_size", "val": ": tuple[int, int] | None = None"}, {"name": "negative_crops_coords_top_left", "val": ": tuple = (0, 0)"}, {"name": "negative_target_size", "val": ": tuple[int, int] | None = None"}, {"name": "aesthetic_score", "val": ": float = 6.0"}, {"name": "negative_aesthetic_score", "val": ": float = 2.5"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Union[typing.Callable[[int, int], NoneType], diffusers.callbacks.PipelineCallback, diffusers.callbacks.MultiPipelineCallbacks, NoneType] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders - **image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, `list[np.ndarray]`, -- `list[list[torch.Tensor]]`, `list[list[np.ndarray]]` or `list[list[PIL.Image.Image]]`): The initial image will be used as the starting point for the image generation process. Can also accept image latents as `image`, if passing latents directly, it will not be encoded again. - **control_image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, `list[np.ndarray]`, -- `list[list[torch.Tensor]]`, `list[list[np.ndarray]]` or `list[list[PIL.Image.Image]]`): The ControlNet input condition. ControlNet uses this input condition to generate guidance to Unet. If the type is specified as `torch.Tensor`, it is passed to ControlNet as is. `PIL.Image.Image` can also be accepted as an image. The dimensions of the output image defaults to `image`'s dimensions. If height and/or width are passed, `image` is resized according to them. If multiple ControlNets are specified in init, images must be passed as a list such that each element of the list can be correctly batched for input to a single controlnet. - **height** (`int`, *optional*, defaults to the size of control_image) -- The height in pixels of the generated image. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **width** (`int`, *optional*, defaults to the size of control_image) -- The width in pixels of the generated image. Anything below 512 pixels won't work well for [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) and checkpoints that are not specifically fine-tuned on low resolutions. - **strength** (`float`, *optional*, defaults to 0.8) -- Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a starting point and more noise is added the higher the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 essentially ignores `image`. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **guidance_scale** (`float`, *optional*, defaults to 7.5) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **ip_adapter_image** -- (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. - **ip_adapter_image_embeds** (`list[torch.Tensor]`, *optional*) -- Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a [StableDiffusionPipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/stable_diffusion/gligen#diffusers.pipelines.stable_diffusion.StableDiffusionPipelineOutput) instead of a plain tuple. - **cross_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **controlnet_conditioning_scale** (`float` or `list[float]`, *optional*, defaults to 1.0) -- The outputs of the controlnet are multiplied by `controlnet_conditioning_scale` before they are added to the residual in the original unet. If multiple ControlNets are specified in init, you can set the corresponding scale as a list. - **guess_mode** (`bool`, *optional*, defaults to `False`) -- In this mode, the ControlNet encoder will try best to recognize the content of the input image even if you remove all prompts. The `guidance_scale` between 3.0 and 5.0 is recommended. - **control_guidance_start** (`float` or `list[float]`, *optional*, defaults to 0.0) -- The percentage of total steps at which the controlnet starts applying. - **control_guidance_end** (`float` or `list[float]`, *optional*, defaults to 1.0) -- The percentage of total steps at which the controlnet stops applying. - **original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- For most cases, `target_size` should be set to the desired height and width of the generated image. If not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_original_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a specific image resolution. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_crops_coords_top_left** (`tuple[int]`, *optional*, defaults to (0, 0)) -- To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **negative_target_size** (`tuple[int]`, *optional*, defaults to (1024, 1024)) -- To negatively condition the generation process based on a target image resolution. It should be as same as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. - **aesthetic_score** (`float`, *optional*, defaults to 6.0) -- Used to simulate an aesthetic score of the generated image by influencing the positive text condition. Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). - **negative_aesthetic_score** (`float`, *optional*, defaults to 2.5) -- Part of SDXL's micro-conditioning as explained in section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to simulate an aesthetic score of the generated image by influencing the negative text condition. - **clip_skip** (`int`, *optional*) -- Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. - **callback_on_step_end** (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*) -- A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of each denoising step during the inference. with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple` containing the output images. Function invoked when calling the pipeline for generation. Examples: ```py >>> # pip install accelerate transformers safetensors diffusers >>> import torch >>> import numpy as np >>> from PIL import Image >>> from transformers import DPTFeatureExtractor, DPTForDepthEstimation >>> from diffusers import ControlNetModel, StableDiffusionXLControlNetPAGImg2ImgPipeline, AutoencoderKL >>> from diffusers.utils import load_image >>> depth_estimator = DPTForDepthEstimation.from_pretrained("Intel/dpt-hybrid-midas").to("cuda") >>> feature_extractor = DPTFeatureExtractor.from_pretrained("Intel/dpt-hybrid-midas") >>> controlnet = ControlNetModel.from_pretrained( ... "diffusers/controlnet-depth-sdxl-1.0-small", ... variant="fp16", ... use_safetensors="True", ... torch_dtype=torch.float16, ... ) >>> vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16) >>> pipe = StableDiffusionXLControlNetPAGImg2ImgPipeline.from_pretrained( ... "stabilityai/stable-diffusion-xl-base-1.0", ... controlnet=controlnet, ... vae=vae, ... variant="fp16", ... use_safetensors=True, ... torch_dtype=torch.float16, ... enable_pag=True, ... ) >>> pipe.enable_model_cpu_offload() >>> def get_depth_map(image): ... image = feature_extractor(images=image, return_tensors="pt").pixel_values.to("cuda") ... with torch.no_grad(), torch.autocast("cuda"): ... depth_map = depth_estimator(image).predicted_depth ... depth_map = torch.nn.functional.interpolate( ... depth_map.unsqueeze(1), ... size=(1024, 1024), ... mode="bicubic", ... align_corners=False, ... ) ... depth_min = torch.amin(depth_map, dim=[1, 2, 3], keepdim=True) ... depth_max = torch.amax(depth_map, dim=[1, 2, 3], keepdim=True) ... depth_map = (depth_map - depth_min) / (depth_max - depth_min) ... image = torch.cat([depth_map] * 3, dim=1) ... image = image.permute(0, 2, 3, 1).cpu().numpy()[0] ... image = Image.fromarray((image * 255.0).clip(0, 255).astype(np.uint8)) ... return image >>> prompt = "A robot, 4k photo" >>> image = load_image( ... "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main" ... "/kandinsky/cat.png" ... ).resize((1024, 1024)) >>> controlnet_conditioning_scale = 0.5 # recommended for good generalization >>> depth_image = get_depth_map(image) >>> images = pipe( ... prompt, ... image=image, ... control_image=depth_image, ... strength=0.99, ... num_inference_steps=50, ... controlnet_conditioning_scale=controlnet_conditioning_scale, ... ).images >>> images[0].save(f"robot_cat.png") ``` **Parameters:** vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModel`) : Frozen text-encoder. Stable Diffusion uses the text portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. text_encoder_2 (` CLIPTextModelWithProjection`) : Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). unet ([UNet2DConditionModel](/docs/diffusers/v0.37.0/en/api/models/unet2d-cond#diffusers.UNet2DConditionModel)) : Conditional U-Net architecture to denoise the encoded image latents. controlnet ([ControlNetModel](/docs/diffusers/v0.37.0/en/api/models/controlnet#diffusers.ControlNetModel) or `list[ControlNetModel]`) : Provides additional conditioning to the unet during the denoising process. If you set multiple ControlNets as a list, the outputs from each ControlNet are added together to create one combined additional conditioning. scheduler ([SchedulerMixin](/docs/diffusers/v0.37.0/en/api/schedulers/overview#diffusers.SchedulerMixin)) : A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of [DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), [LMSDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/lms_discrete#diffusers.LMSDiscreteScheduler), or [PNDMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/pndm#diffusers.PNDMScheduler). requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`) : Whether the `unet` requires an `aesthetic_score` condition to be passed during inference. Also see the config of `stabilityai/stable-diffusion-xl-refiner-1-0`. force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`) : Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of `stabilityai/stable-diffusion-xl-base-1-0`. add_watermarker (`bool`, *optional*) : Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to watermark output images. If not defined, it will default to True if the package is installed, otherwise no watermarker will be used. feature_extractor ([CLIPImageProcessor](https://huggingface.co/docs/transformers/v5.3.0/en/model_doc/clip#transformers.CLIPImageProcessor)) : A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. **Returns:** ``~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` or `tuple`` `~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput` if `return_dict` is True, otherwise a `tuple` containing the output images. #### encode_prompt[[diffusers.StableDiffusionXLControlNetPAGImg2ImgPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_controlnet_sd_xl_img2img.py#L297) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in both text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. ## StableDiffusion3PAGPipeline[[diffusers.StableDiffusion3PAGPipeline]] #### diffusers.StableDiffusion3PAGPipeline[[diffusers.StableDiffusion3PAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3.py#L136) [PAG pipeline](https://huggingface.co/docs/diffusers/main/en/using-diffusers/pag) for text-to-image generation using Stable Diffusion 3. __call__diffusers.StableDiffusion3PAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3.py#L684[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "prompt_3", "val": ": str | list[str] | None = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "num_inference_steps", "val": ": int = 28"}, {"name": "sigmas", "val": ": list[float] | None = None"}, {"name": "guidance_scale", "val": ": float = 7.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_3", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.FloatTensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "joint_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "max_sequence_length", "val": ": int = 256"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is will be used instead - **prompt_3** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is will be used instead - **height** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The height in pixels of the generated image. This is set to 1024 by default for the best results. - **width** (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor) -- The width in pixels of the generated image. This is set to 1024 by default for the best results. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 7.0) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used instead - **negative_prompt_3** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `negative_prompt` is used instead - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.FloatTensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` instead of a plain tuple. - **joint_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **callback_on_step_end** (`Callable`, *optional*) -- A function that calls at the end of each denoising steps during the inference. The function is called with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **max_sequence_length** (`int` defaults to 256) -- Maximum sequence length to use with the `prompt`. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` or `tuple``~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "stabilityai/stable-diffusion-3-medium-diffusers", ... torch_dtype=torch.float16, ... enable_pag=True, ... pag_applied_layers=["blocks.13"], ... ) >>> pipe.to("cuda") >>> prompt = "A cat holding a sign that says hello world" >>> image = pipe(prompt, guidance_scale=5.0, pag_scale=0.7).images[0] >>> image.save("sd3_pag.png") ``` **Parameters:** transformer ([SD3Transformer2DModel](/docs/diffusers/v0.37.0/en/api/models/sd3_transformer2d#diffusers.SD3Transformer2DModel)) : Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. scheduler ([FlowMatchEulerDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/flow_match_euler_discrete#diffusers.FlowMatchEulerDiscreteScheduler)) : A scheduler to be used in combination with `transformer` to denoise the encoded image latents. vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModelWithProjection`) : [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant, with an additional added projection layer that is initialized with a diagonal matrix with the `hidden_size` as its dimension. text_encoder_2 (`CLIPTextModelWithProjection`) : [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. text_encoder_3 (`T5EncoderModel`) : Frozen text-encoder. Stable Diffusion 3 uses [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the [t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_3 (`T5TokenizerFast`) : Tokenizer of class [T5Tokenizer](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5Tokenizer). **Returns:** ``~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` or `tuple`` `~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.StableDiffusion3PAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3.py#L335) **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in all text-encoders prompt_3 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is used in all text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in all the text-encoders. negative_prompt_3 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `negative_prompt` is used in all the text-encoders. prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. ## StableDiffusion3PAGImg2ImgPipeline[[diffusers.StableDiffusion3PAGImg2ImgPipeline]] #### diffusers.StableDiffusion3PAGImg2ImgPipeline[[diffusers.StableDiffusion3PAGImg2ImgPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3_img2img.py#L152) [PAG pipeline](https://huggingface.co/docs/diffusers/main/en/using-diffusers/pag) for image-to-image generation using Stable Diffusion 3. __call__diffusers.StableDiffusion3PAGImg2ImgPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3_img2img.py#L735[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "prompt_2", "val": ": str | list[str] | None = None"}, {"name": "prompt_3", "val": ": str | list[str] | None = None"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "image", "val": ": PIL.Image.Image | numpy.ndarray | torch.Tensor | list[PIL.Image.Image] | list[numpy.ndarray] | list[torch.Tensor] = None"}, {"name": "strength", "val": ": float = 0.6"}, {"name": "num_inference_steps", "val": ": int = 50"}, {"name": "sigmas", "val": ": list[float] | None = None"}, {"name": "guidance_scale", "val": ": float = 7.0"}, {"name": "negative_prompt", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_2", "val": ": str | list[str] | None = None"}, {"name": "negative_prompt_3", "val": ": str | list[str] | None = None"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.FloatTensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "pooled_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "negative_pooled_prompt_embeds", "val": ": torch.FloatTensor | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "joint_attention_kwargs", "val": ": dict[str, typing.Any] | None = None"}, {"name": "clip_skip", "val": ": int | None = None"}, {"name": "callback_on_step_end", "val": ": typing.Optional[typing.Callable[[int, int], NoneType]] = None"}, {"name": "callback_on_step_end_tensor_inputs", "val": ": list = ['latents']"}, {"name": "max_sequence_length", "val": ": int = 256"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is will be used instead - **prompt_3** (`str` or `list[str]`, *optional*) -- The prompt or prompts to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is will be used instead - **image** (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `list[torch.Tensor]`, `list[PIL.Image.Image]`, or `list[np.ndarray]`) -- `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image latents as `image`, but if passing latents directly it is not encoded again. - **strength** (`float`, *optional*, defaults to 0.8) -- Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a starting point and more noise is added the higher the `strength`. The number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 essentially ignores `image`. - **num_inference_steps** (`int`, *optional*, defaults to 50) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 7.0) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **negative_prompt_2** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used instead - **negative_prompt_3** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `negative_prompt` is used instead - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.FloatTensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **negative_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **pooled_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. - **negative_pooled_prompt_embeds** (`torch.FloatTensor`, *optional*) -- Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput` instead of a plain tuple. - **joint_attention_kwargs** (`dict`, *optional*) -- A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under `self.processor` in [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). - **callback_on_step_end** (`Callable`, *optional*) -- A function that calls at the end of each denoising steps during the inference. The function is called with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by `callback_on_step_end_tensor_inputs`. - **callback_on_step_end_tensor_inputs** (`list`, *optional*) -- The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the `._callback_tensor_inputs` attribute of your pipeline class. - **max_sequence_length** (`int` defaults to 256) -- Maximum sequence length to use with the `prompt`. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` or `tuple``~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import StableDiffusion3PAGImg2ImgPipeline >>> from diffusers.utils import load_image >>> pipe = StableDiffusion3PAGImg2ImgPipeline.from_pretrained( ... "stabilityai/stable-diffusion-3-medium-diffusers", ... torch_dtype=torch.float16, ... pag_applied_layers=["blocks.13"], ... ) >>> pipe.to("cuda") >>> prompt = "a photo of an astronaut riding a horse on mars" >>> url = "https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/aa_xl/000000009.png" >>> init_image = load_image(url).convert("RGB") >>> image = pipe(prompt, image=init_image, guidance_scale=5.0, pag_scale=0.7).images[0] ``` **Parameters:** transformer ([SD3Transformer2DModel](/docs/diffusers/v0.37.0/en/api/models/sd3_transformer2d#diffusers.SD3Transformer2DModel)) : Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. scheduler ([FlowMatchEulerDiscreteScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/flow_match_euler_discrete#diffusers.FlowMatchEulerDiscreteScheduler)) : A scheduler to be used in combination with `transformer` to denoise the encoded image latents. vae ([AutoencoderKL](/docs/diffusers/v0.37.0/en/api/models/autoencoderkl#diffusers.AutoencoderKL)) : Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. text_encoder (`CLIPTextModelWithProjection`) : [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant, with an additional added projection layer that is initialized with a diagonal matrix with the `hidden_size` as its dimension. text_encoder_2 (`CLIPTextModelWithProjection`) : [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), specifically the [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) variant. text_encoder_3 (`T5EncoderModel`) : Frozen text-encoder. Stable Diffusion 3 uses [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the [t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. tokenizer (`CLIPTokenizer`) : Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_2 (`CLIPTokenizer`) : Second Tokenizer of class [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). tokenizer_3 (`T5TokenizerFast`) : Tokenizer of class [T5Tokenizer](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5Tokenizer). **Returns:** ``~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` or `tuple`` `~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput` if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. #### encode_prompt[[diffusers.StableDiffusion3PAGImg2ImgPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_sd_3_img2img.py#L351) **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is used in all text-encoders prompt_3 (`str` or `list[str]`, *optional*) : The prompt or prompts to be sent to the `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is used in all text-encoders device : (`torch.device`): torch device num_images_per_prompt (`int`) : number of images that should be generated per prompt do_classifier_free_guidance (`bool`) : whether to use classifier free guidance or not negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). negative_prompt_2 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `negative_prompt` is used in all the text-encoders. negative_prompt_3 (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `negative_prompt` is used in all the text-encoders. prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. pooled_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled text embeddings will be generated from `prompt` input argument. negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*) : Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` input argument. clip_skip (`int`, *optional*) : Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that the output of the pre-final layer will be used for computing the prompt embeddings. lora_scale (`float`, *optional*) : A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. ## PixArtSigmaPAGPipeline[[diffusers.PixArtSigmaPAGPipeline]] #### diffusers.PixArtSigmaPAGPipeline[[diffusers.PixArtSigmaPAGPipeline]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_pixart_sigma.py#L144) [PAG pipeline](https://huggingface.co/docs/diffusers/main/en/using-diffusers/pag) for text-to-image generation using PixArt-Sigma. __call__diffusers.PixArtSigmaPAGPipeline.__call__https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_pixart_sigma.py#L574[{"name": "prompt", "val": ": str | list[str] = None"}, {"name": "negative_prompt", "val": ": str = ''"}, {"name": "num_inference_steps", "val": ": int = 20"}, {"name": "timesteps", "val": ": list = None"}, {"name": "sigmas", "val": ": list = None"}, {"name": "guidance_scale", "val": ": float = 4.5"}, {"name": "num_images_per_prompt", "val": ": int | None = 1"}, {"name": "height", "val": ": int | None = None"}, {"name": "width", "val": ": int | None = None"}, {"name": "eta", "val": ": float = 0.0"}, {"name": "generator", "val": ": torch._C.Generator | list[torch._C.Generator] | None = None"}, {"name": "latents", "val": ": torch.Tensor | None = None"}, {"name": "prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "prompt_attention_mask", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_embeds", "val": ": torch.Tensor | None = None"}, {"name": "negative_prompt_attention_mask", "val": ": torch.Tensor | None = None"}, {"name": "output_type", "val": ": str | None = 'pil'"}, {"name": "return_dict", "val": ": bool = True"}, {"name": "callback", "val": ": typing.Optional[typing.Callable[[int, int, torch.Tensor], NoneType]] = None"}, {"name": "callback_steps", "val": ": int = 1"}, {"name": "clean_caption", "val": ": bool = True"}, {"name": "use_resolution_binning", "val": ": bool = True"}, {"name": "max_sequence_length", "val": ": int = 300"}, {"name": "pag_scale", "val": ": float = 3.0"}, {"name": "pag_adaptive_scale", "val": ": float = 0.0"}]- **prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. - **negative_prompt** (`str` or `list[str]`, *optional*) -- The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). - **num_inference_steps** (`int`, *optional*, defaults to 100) -- The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. - **timesteps** (`list[int]`, *optional*) -- Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. - **sigmas** (`list[float]`, *optional*) -- Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. - **guidance_scale** (`float`, *optional*, defaults to 4.5) -- Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. - **num_images_per_prompt** (`int`, *optional*, defaults to 1) -- The number of images to generate per prompt. - **height** (`int`, *optional*, defaults to self.unet.config.sample_size) -- The height in pixels of the generated image. - **width** (`int`, *optional*, defaults to self.unet.config.sample_size) -- The width in pixels of the generated image. - **eta** (`float`, *optional*, defaults to 0.0) -- Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. - **generator** (`torch.Generator` or `list[torch.Generator]`, *optional*) -- One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. - **latents** (`torch.Tensor`, *optional*) -- Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. - **prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. - **prompt_attention_mask** (`torch.Tensor`, *optional*) -- Pre-generated attention mask for text embeddings. - **negative_prompt_embeds** (`torch.Tensor`, *optional*) -- Pre-generated negative text embeddings. For PixArt-Sigma this negative prompt should be "". If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. - **negative_prompt_attention_mask** (`torch.Tensor`, *optional*) -- Pre-generated attention mask for negative text embeddings. - **output_type** (`str`, *optional*, defaults to `"pil"`) -- The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. - **return_dict** (`bool`, *optional*, defaults to `True`) -- Whether or not to return a `~pipelines.stable_diffusion.IFPipelineOutput` instead of a plain tuple. - **callback** (`Callable`, *optional*) -- A function that will be called every `callback_steps` steps during inference. The function will be called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. - **callback_steps** (`int`, *optional*, defaults to 1) -- The frequency at which the `callback` function will be called. If not specified, the callback will be called at every step. - **clean_caption** (`bool`, *optional*, defaults to `True`) -- Whether or not to clean the caption before creating embeddings. Requires `beautifulsoup4` and `ftfy` to be installed. If the dependencies are not installed, the embeddings will be created from the raw prompt. - **use_resolution_binning** (`bool` defaults to `True`) -- If set to `True`, the requested height and width are first mapped to the closest resolutions using `ASPECT_RATIO_1024_BIN`. After the produced latents are decoded into images, they are resized back to the requested resolution. Useful for generating non-square images. - **max_sequence_length** (`int` defaults to 300) -- Maximum sequence length to use with the `prompt`. - **pag_scale** (`float`, *optional*, defaults to 3.0) -- The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. - **pag_adaptive_scale** (`float`, *optional*, defaults to 0.0) -- The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used.0[ImagePipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/ddim#diffusers.ImagePipelineOutput) or `tuple`If `return_dict` is `True`, [ImagePipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/ddim#diffusers.ImagePipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images Function invoked when calling the pipeline for generation. Examples: ```py >>> import torch >>> from diffusers import AutoPipelineForText2Image >>> pipe = AutoPipelineForText2Image.from_pretrained( ... "PixArt-alpha/PixArt-Sigma-XL-2-1024-MS", ... torch_dtype=torch.float16, ... pag_applied_layers=["blocks.14"], ... enable_pag=True, ... ) >>> pipe = pipe.to("cuda") >>> prompt = "A small cactus with a happy face in the Sahara desert" >>> image = pipe(prompt, pag_scale=4.0, guidance_scale=1.0).images[0] ``` **Parameters:** prompt (`str` or `list[str]`, *optional*) : The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. instead. negative_prompt (`str` or `list[str]`, *optional*) : The prompt or prompts not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). num_inference_steps (`int`, *optional*, defaults to 100) : The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. timesteps (`list[int]`, *optional*) : Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. Must be in descending order. sigmas (`list[float]`, *optional*) : Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed will be used. guidance_scale (`float`, *optional*, defaults to 4.5) : Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, usually at the expense of lower image quality. num_images_per_prompt (`int`, *optional*, defaults to 1) : The number of images to generate per prompt. height (`int`, *optional*, defaults to self.unet.config.sample_size) : The height in pixels of the generated image. width (`int`, *optional*, defaults to self.unet.config.sample_size) : The width in pixels of the generated image. eta (`float`, *optional*, defaults to 0.0) : Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only applies to [schedulers.DDIMScheduler](/docs/diffusers/v0.37.0/en/api/schedulers/ddim#diffusers.DDIMScheduler), will be ignored for others. generator (`torch.Generator` or `list[torch.Generator]`, *optional*) : One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation deterministic. latents (`torch.Tensor`, *optional*) : Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image generation. Can be used to tweak the same generation with different prompts. If not provided, a latents tensor will be generated by sampling using the supplied random `generator`. prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. prompt_attention_mask (`torch.Tensor`, *optional*) : Pre-generated attention mask for text embeddings. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. For PixArt-Sigma this negative prompt should be "". If not provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. negative_prompt_attention_mask (`torch.Tensor`, *optional*) : Pre-generated attention mask for negative text embeddings. output_type (`str`, *optional*, defaults to `"pil"`) : The output format of the generate image. Choose between [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. return_dict (`bool`, *optional*, defaults to `True`) : Whether or not to return a `~pipelines.stable_diffusion.IFPipelineOutput` instead of a plain tuple. callback (`Callable`, *optional*) : A function that will be called every `callback_steps` steps during inference. The function will be called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. callback_steps (`int`, *optional*, defaults to 1) : The frequency at which the `callback` function will be called. If not specified, the callback will be called at every step. clean_caption (`bool`, *optional*, defaults to `True`) : Whether or not to clean the caption before creating embeddings. Requires `beautifulsoup4` and `ftfy` to be installed. If the dependencies are not installed, the embeddings will be created from the raw prompt. use_resolution_binning (`bool` defaults to `True`) : If set to `True`, the requested height and width are first mapped to the closest resolutions using `ASPECT_RATIO_1024_BIN`. After the produced latents are decoded into images, they are resized back to the requested resolution. Useful for generating non-square images. max_sequence_length (`int` defaults to 300) : Maximum sequence length to use with the `prompt`. pag_scale (`float`, *optional*, defaults to 3.0) : The scale factor for the perturbed attention guidance. If it is set to 0.0, the perturbed attention guidance will not be used. pag_adaptive_scale (`float`, *optional*, defaults to 0.0) : The adaptive scale factor for the perturbed attention guidance. If it is set to 0.0, `pag_scale` is used. **Returns:** `[ImagePipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/ddim#diffusers.ImagePipelineOutput) or `tuple`` If `return_dict` is `True`, [ImagePipelineOutput](/docs/diffusers/v0.37.0/en/api/pipelines/ddim#diffusers.ImagePipelineOutput) is returned, otherwise a `tuple` is returned where the first element is a list with the generated images #### encode_prompt[[diffusers.PixArtSigmaPAGPipeline.encode_prompt]] [Source](https://github.com/huggingface/diffusers/blob/v0.37.0/src/diffusers/pipelines/pag/pipeline_pag_pixart_sigma.py#L190) Encodes the prompt into text encoder hidden states. **Parameters:** prompt (`str` or `list[str]`, *optional*) : prompt to be encoded negative_prompt (`str` or `list[str]`, *optional*) : The prompt not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). For PixArt-Alpha, this should be "". do_classifier_free_guidance (`bool`, *optional*, defaults to `True`) : whether to use classifier free guidance or not num_images_per_prompt (`int`, *optional*, defaults to 1) : number of images that should be generated per prompt device : (`torch.device`, *optional*): torch device to place the resulting embeddings on prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not provided, text embeddings will be generated from `prompt` input argument. negative_prompt_embeds (`torch.Tensor`, *optional*) : Pre-generated negative text embeddings. For PixArt-Alpha, it's should be the embeddings of the "" string. clean_caption (`bool`, defaults to `False`) : If `True`, the function will preprocess and clean the provided caption before encoding. max_sequence_length (`int`, defaults to 300) : Maximum sequence length to use for the prompt.