Magic Fixup: Streamlining Photo Editing by Watching Dynamic Videos

• URL: http://arxiv.org/abs/2403.13044v1
• Date: Tue, 19 Mar 2024 17:59:58 GMT
• Title: Magic Fixup: Streamlining Photo Editing by Watching Dynamic Videos
• Authors: Hadi Alzayer, Zhihao Xia, Xuaner Zhang, Eli Shechtman, Jia-Bin Huang, Michael Gharbi,
• Abstract summary: We propose a generative model that synthesizes a photorealistic output that follows a prescribed layout. Our method transfers fine details from the original image and preserves the identity of its parts. We show that by using simple segmentations and coarse 2D manipulations, we can synthesize a photorealistic edit faithful to the user's input.
• Score: 32.74215702447293
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a generative model that, given a coarsely edited image, synthesizes a photorealistic output that follows the prescribed layout. Our method transfers fine details from the original image and preserves the identity of its parts. Yet, it adapts it to the lighting and context defined by the new layout. Our key insight is that videos are a powerful source of supervision for this task: objects and camera motions provide many observations of how the world changes with viewpoint, lighting, and physical interactions. We construct an image dataset in which each sample is a pair of source and target frames extracted from the same video at randomly chosen time intervals. We warp the source frame toward the target using two motion models that mimic the expected test-time user edits. We supervise our model to translate the warped image into the ground truth, starting from a pretrained diffusion model. Our model design explicitly enables fine detail transfer from the source frame to the generated image, while closely following the user-specified layout. We show that by using simple segmentations and coarse 2D manipulations, we can synthesize a photorealistic edit faithful to the user's input while addressing second-order effects like harmonizing the lighting and physical interactions between edited objects.

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