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from typing import List, Union, Dict, Set, Tuple
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from diffusers.pipelines.stable_diffusion.safety_checker import (
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StableDiffusionSafetyChecker,
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)
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from transformers import AutoFeatureExtractor
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import torch
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from PIL import Image, ImageFilter
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import numpy as np
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safety_model_id: str = "CompVis/stable-diffusion-safety-checker"
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safety_feature_extractor: AutoFeatureExtractor = None
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safety_checker: StableDiffusionSafetyChecker = None
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def numpy_to_pil(images: np.ndarray) -> List[Image.Image]:
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if images.ndim == 3:
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images = images[None, ...]
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images = (images * 255).round().astype("uint8")
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pil_images = [Image.fromarray(image) for image in images]
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return pil_images
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def check_image(x_image: np.ndarray) -> Tuple[np.ndarray, List[bool]]:
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global safety_feature_extractor, safety_checker
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if safety_feature_extractor is None:
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safety_feature_extractor = AutoFeatureExtractor.from_pretrained(safety_model_id)
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safety_checker = StableDiffusionSafetyChecker.from_pretrained(safety_model_id)
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safety_checker_input = safety_feature_extractor(
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images=numpy_to_pil(x_image), return_tensors="pt"
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)
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x_checked_image, hs = safety_checker(
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images=x_image, clip_input=safety_checker_input.pixel_values
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)
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return x_checked_image, hs
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def check_batch(x: torch.Tensor) -> torch.Tensor:
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x_samples_ddim_numpy = x.cpu().permute(0, 2, 3, 1).numpy()
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x_checked_image, _ = check_image(x_samples_ddim_numpy)
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x = torch.from_numpy(x_checked_image).permute(0, 3, 1, 2)
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return x
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def convert_to_sd(img: Image) -> Image:
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_, hs = check_image(np.array(img))
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if any(hs):
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img = (
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img.resize((int(img.width * 0.1), int(img.height * 0.1)))
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.resize(img.size, Image.BOX)
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.filter(ImageFilter.BLUR)
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)
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return img
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from typing import List, Union, Dict, Set, Tuple
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# from diffusers.pipelines.stable_diffusion.safety_checker import (
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# StableDiffusionSafetyChecker,
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# )
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from transformers import AutoFeatureExtractor
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import torch
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from PIL import Image, ImageFilter
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import numpy as np
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# safety_model_id: str = "CompVis/stable-diffusion-safety-checker"
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# safety_feature_extractor: AutoFeatureExtractor = None
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# safety_checker: StableDiffusionSafetyChecker = None
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def numpy_to_pil(images: np.ndarray) -> List[Image.Image]:
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if images.ndim == 3:
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images = images[None, ...]
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images = (images * 255).round().astype("uint8")
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pil_images = [Image.fromarray(image) for image in images]
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return pil_images
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def check_image(x_image: np.ndarray) -> Tuple[np.ndarray, List[bool]]:
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global safety_feature_extractor, safety_checker
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# if safety_feature_extractor is None:
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# safety_feature_extractor = AutoFeatureExtractor.from_pretrained(safety_model_id)
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# safety_checker = StableDiffusionSafetyChecker.from_pretrained(safety_model_id)
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# safety_checker_input = safety_feature_extractor(
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# images=numpy_to_pil(x_image), return_tensors="pt"
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# )
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# x_checked_image, hs = safety_checker(
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# images=x_image, clip_input=safety_checker_input.pixel_values
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# )
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# return x_checked_image, hs
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return x_image, False
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def check_batch(x: torch.Tensor) -> torch.Tensor:
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x_samples_ddim_numpy = x.cpu().permute(0, 2, 3, 1).numpy()
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# x_checked_image, _ = check_image(x_samples_ddim_numpy)
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x_checked_image = x_samples_ddim_numpy
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x = torch.from_numpy(x_checked_image).permute(0, 3, 1, 2)
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return x
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def convert_to_sd(img: Image) -> Image:
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# _, hs = check_image(np.array(img))
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# if any(hs):
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# img = (
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# img.resize((int(img.width * 0.1), int(img.height * 0.1)))
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# .resize(img.size, Image.BOX)
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# .filter(ImageFilter.BLUR)
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# )
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return img
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