LEditsPP - examples, check height/width, add tiling/slicing (#10471)

* LEditsPP - examples, check height/width, add tiling/slicing

* make style

Author: hlky

src/diffusers/pipelines/ledits_pp/pipeline_leditspp_stable_diffusion.py

@@ -34,21 +34,19 @@
 EXAMPLE_DOC_STRING = """
     Examples:
         ```py
-        >>> import PIL
-        >>> import requests
         >>> import torch
-        >>> from io import BytesIO
 
         >>> from diffusers import LEditsPPPipelineStableDiffusion
         >>> from diffusers.utils import load_image
 
         >>> pipe = LEditsPPPipelineStableDiffusion.from_pretrained(
-        ...     "runwayml/stable-diffusion-v1-5", torch_dtype=torch.float16
+        ...     "runwayml/stable-diffusion-v1-5", variant="fp16", torch_dtype=torch.float16
         ... )
+        >>> pipe.enable_vae_tiling()
         >>> pipe = pipe.to("cuda")
 
         >>> img_url = "https://www.aiml.informatik.tu-darmstadt.de/people/mbrack/cherry_blossom.png"
-        >>> image = load_image(img_url).convert("RGB")
+        >>> image = load_image(img_url).resize((512, 512))
 
         >>> _ = pipe.invert(image=image, num_inversion_steps=50, skip=0.1)
 
@@ -152,7 +150,7 @@ def __init__(self, device):
 
         # The gaussian kernel is the product of the gaussian function of each dimension.
         kernel = 1
-        meshgrids = torch.meshgrid([torch.arange(size, dtype=torch.float32) for size in kernel_size])
+        meshgrids = torch.meshgrid([torch.arange(size, dtype=torch.float32) for size in kernel_size], indexing="ij")
         for size, std, mgrid in zip(kernel_size, sigma, meshgrids):
             mean = (size - 1) / 2
             kernel *= 1 / (std * math.sqrt(2 * math.pi)) * torch.exp(-(((mgrid - mean) / (2 * std)) ** 2))
@@ -706,6 +704,35 @@ def clip_skip(self):
     def cross_attention_kwargs(self):
         return self._cross_attention_kwargs
 
+    def enable_vae_slicing(self):
+        r"""
+        Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to
+        compute decoding in several steps. This is useful to save some memory and allow larger batch sizes.
+        """
+        self.vae.enable_slicing()
+
+    def disable_vae_slicing(self):
+        r"""
+        Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to
+        computing decoding in one step.
+        """
+        self.vae.disable_slicing()
+
+    def enable_vae_tiling(self):
+        r"""
+        Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to
+        compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow
+        processing larger images.
+        """
+        self.vae.enable_tiling()
+
+    def disable_vae_tiling(self):
+        r"""
+        Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to
+        computing decoding in one step.
+        """
+        self.vae.disable_tiling()
+
     @torch.no_grad()
     @replace_example_docstring(EXAMPLE_DOC_STRING)
     def __call__(
@@ -1271,6 +1298,8 @@ def invert(
             [`~pipelines.ledits_pp.LEditsPPInversionPipelineOutput`]: Output will contain the resized input image(s)
             and respective VAE reconstruction(s).
         """
+        if height is not None and height % 32 != 0 or width is not None and width % 32 != 0:
+            raise ValueError("height and width must be a factor of 32.")
         # Reset attn processor, we do not want to store attn maps during inversion
         self.unet.set_attn_processor(AttnProcessor())
 
@@ -1360,6 +1389,12 @@ def encode_image(self, image, dtype=None, height=None, width=None, resize_mode="
         image = self.image_processor.preprocess(
             image=image, height=height, width=width, resize_mode=resize_mode, crops_coords=crops_coords
         )
+        height, width = image.shape[-2:]
+        if height % 32 != 0 or width % 32 != 0:
+            raise ValueError(
+                "Image height and width must be a factor of 32. "
+                "Consider down-sampling the input using the `height` and `width` parameters"
+            )
         resized = self.image_processor.postprocess(image=image, output_type="pil")
 
         if max(image.shape[-2:]) > self.vae.config["sample_size"] * 1.5:

src/diffusers/pipelines/ledits_pp/pipeline_leditspp_stable_diffusion_xl.py

@@ -72,25 +72,18 @@
     Examples:
         ```py
         >>> import torch
-        >>> import PIL
-        >>> import requests
-        >>> from io import BytesIO
 
         >>> from diffusers import LEditsPPPipelineStableDiffusionXL
+        >>> from diffusers.utils import load_image
 
         >>> pipe = LEditsPPPipelineStableDiffusionXL.from_pretrained(
-        ...     "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16
+        ...     "stabilityai/stable-diffusion-xl-base-1.0", variant="fp16", torch_dtype=torch.float16
         ... )
+        >>> pipe.enable_vae_tiling()
         >>> pipe = pipe.to("cuda")
 
-
-        >>> def download_image(url):
-        ...     response = requests.get(url)
-        ...     return PIL.Image.open(BytesIO(response.content)).convert("RGB")
-
-
         >>> img_url = "https://www.aiml.informatik.tu-darmstadt.de/people/mbrack/tennis.jpg"
-        >>> image = download_image(img_url)
+        >>> image = load_image(img_url).resize((1024, 1024))
 
         >>> _ = pipe.invert(image=image, num_inversion_steps=50, skip=0.2)
 
@@ -197,7 +190,7 @@ def __init__(self, device):
 
         # The gaussian kernel is the product of the gaussian function of each dimension.
         kernel = 1
-        meshgrids = torch.meshgrid([torch.arange(size, dtype=torch.float32) for size in kernel_size])
+        meshgrids = torch.meshgrid([torch.arange(size, dtype=torch.float32) for size in kernel_size], indexing="ij")
         for size, std, mgrid in zip(kernel_size, sigma, meshgrids):
             mean = (size - 1) / 2
             kernel *= 1 / (std * math.sqrt(2 * math.pi)) * torch.exp(-(((mgrid - mean) / (2 * std)) ** 2))
@@ -768,6 +761,35 @@ def denoising_end(self):
     def num_timesteps(self):
         return self._num_timesteps
 
+    def enable_vae_slicing(self):
+        r"""
+        Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to
+        compute decoding in several steps. This is useful to save some memory and allow larger batch sizes.
+        """
+        self.vae.enable_slicing()
+
+    def disable_vae_slicing(self):
+        r"""
+        Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to
+        computing decoding in one step.
+        """
+        self.vae.disable_slicing()
+
+    def enable_vae_tiling(self):
+        r"""
+        Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to
+        compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow
+        processing larger images.
+        """
+        self.vae.enable_tiling()
+
+    def disable_vae_tiling(self):
+        r"""
+        Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to
+        computing decoding in one step.
+        """
+        self.vae.disable_tiling()
+
     # Copied from diffusers.pipelines.ledits_pp.pipeline_leditspp_stable_diffusion.LEditsPPPipelineStableDiffusion.prepare_unet
     def prepare_unet(self, attention_store, PnP: bool = False):
         attn_procs = {}
@@ -1401,6 +1423,12 @@ def encode_image(self, image, dtype=None, height=None, width=None, resize_mode="
         image = self.image_processor.preprocess(
             image=image, height=height, width=width, resize_mode=resize_mode, crops_coords=crops_coords
         )
+        height, width = image.shape[-2:]
+        if height % 32 != 0 or width % 32 != 0:
+            raise ValueError(
+                "Image height and width must be a factor of 32. "
+                "Consider down-sampling the input using the `height` and `width` parameters"
+            )
         resized = self.image_processor.postprocess(image=image, output_type="pil")
 
         if max(image.shape[-2:]) > self.vae.config["sample_size"] * 1.5:
@@ -1439,6 +1467,10 @@ def invert(
         crops_coords_top_left: Tuple[int, int] = (0, 0),
         num_zero_noise_steps: int = 3,
         cross_attention_kwargs: Optional[Dict[str, Any]] = None,
+        height: Optional[int] = None,
+        width: Optional[int] = None,
+        resize_mode: Optional[str] = "default",
+        crops_coords: Optional[Tuple[int, int, int, int]] = None,
     ):
         r"""
         The function to the pipeline for image inversion as described by the [LEDITS++
@@ -1486,6 +1518,8 @@ def invert(
             [`~pipelines.ledits_pp.LEditsPPInversionPipelineOutput`]: Output will contain the resized input image(s)
             and respective VAE reconstruction(s).
         """
+        if height is not None and height % 32 != 0 or width is not None and width % 32 != 0:
+            raise ValueError("height and width must be a factor of 32.")
 
         # Reset attn processor, we do not want to store attn maps during inversion
         self.unet.set_attn_processor(AttnProcessor())
@@ -1510,7 +1544,14 @@ def invert(
             do_classifier_free_guidance = source_guidance_scale > 1.0
 
         # 1. prepare image
-        x0, resized = self.encode_image(image, dtype=self.text_encoder_2.dtype)
+        x0, resized = self.encode_image(
+            image,
+            dtype=self.text_encoder_2.dtype,
+            height=height,
+            width=width,
+            resize_mode=resize_mode,
+            crops_coords=crops_coords,
+        )
         width = x0.shape[2] * self.vae_scale_factor
         height = x0.shape[3] * self.vae_scale_factor
         self.size = (height, width)