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Merge branch 'main' of https://huggingface.co/fusing/glide-base

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  license: apache-2.0
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  license: apache-2.0
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+ GLIDE: Towards Photorealistic Image Generation and Editing with Text-Guided Diffusion Models
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+ **Paper**: [GLIDE: Towards Photorealistic Image Generation and Editing with Text-Guided Diffusion Models](https://arxiv.org/abs/2112.10741)
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+ **Abstract**:
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+ *Diffusion models have recently been shown to generate high-quality synthetic images, especially when paired with a guidance technique to trade off diversity for fidelity. We explore diffusion models for the problem of text-conditional image synthesis and compare two different guidance strategies: CLIP guidance and classifier-free guidance. We find that the latter is preferred by human evaluators for both photorealism and caption similarity, and often produces photorealistic samples. Samples from a 3.5 billion parameter text-conditional diffusion model using classifier-free guidance are favored by human evaluators to those from DALL-E, even when the latter uses expensive CLIP reranking. Additionally, we find that our models can be fine-tuned to perform image inpainting, enabling powerful text-driven image editing.*
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+ ## Usage
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+ ```python
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+ # !pip install diffusers
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+ from diffusers import DiffusionPipeline
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+ import PIL.Image
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+ import numpy as np
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+ model_id = "fusing/glide-base"
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+
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+ # load model and scheduler
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+ ddpm = DiffusionPipeline.from_pretrained(model_id)
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+
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+ # run pipeline in inference (sample random noise and denoise)
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+ image = ddpm(eta=0.0, num_inference_steps=50)
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+
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+ # process image to PIL
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+ image_processed = image.cpu().permute(0, 2, 3, 1)
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+ image_processed = (image_processed + 1.0) * 127.5
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+ image_processed = image_processed.numpy().astype(np.uint8)
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+ image_pil = PIL.Image.fromarray(image_processed[0])
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+
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+ # save image
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+ image_pil.save("test.png")
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+ ```
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+
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+ ## Samples
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+ 1. ![sample_1](https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/hf/ddim-lsun-bedroom/image_0.png)
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+ 2. ![sample_1](https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/hf/ddim-lsun-bedroom/image_1.png)
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+ 3. ![sample_1](https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/hf/ddim-lsun-bedroom/image_2.png)
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+ 4. ![sample_1](https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/hf/ddim-lsun-bedroom/image_3.png)