PaintsUndo

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A Base Model of Drawing Behaviors in Digital Paintings

4.5

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About PaintsUndo

PaintsUndo is a base model that generates drawing behavior sequences from static digital paintings, effectively creating time-lapse videos of the artistic process. Developed as a research project and presented at CVPR 2023, the model takes a single image as input and outputs a video showing how the painting might have been constructed step by step. The project showcases capabilities across multiple domains (anime, sketches), supports multiple outputs from one input, and allows interpolation from external sketches. However, it has limitations in photo-realism, complex compositions, and understanding specialized concepts.

Key Features

Generates 16-frame drawing behavior videos at 256×256 resolution from a single still image

Supports multiple output variations from one input

Can extract coarse sketches at different levels (coarse, very coarse, extremely coarse)

Allows interpolation from external sketches (e.g., Anime2Sketch output)

Accepts sketches as input to generate full drawing sequences

Covered in a CVPR 2023 paper with open-source code on GitHub

Pros & Cons

Pros

Academic peer-review and publication at CVPR 2023
Open-source availability on GitHub
Supports diverse artistic domains (anime, natural images, sketches)
Provides controllable coarseness levels for sketch extraction
Enables creative interpolation between different sketch styles

Cons

Struggles to reproduce photo-realistic content
Difficulty handling complicated compositions
Limited understanding of specialized artistic concepts
Results may not follow mainstream workflows in some designs
Output resolution and frame count are fixed (256×256, 16 frames)

Best For

Visualizing the artistic process from finished artworksEducational tool for understanding digital painting techniquesGenerating time-lapse content for art portfolios or tutorialsArtistic analysis and reverse engineering of drawing workflowsCreating multiple plausible drawing sequences from a single image

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FAQ

What is PaintsUndo?

PaintsUndo is a base model that predicts drawing behavior sequences from digital paintings, generating time-lapse videos of the creation process. It was presented at CVPR 2023.

How does PaintsUndo work?

Given a still image as input, the model outputs a 16-frame video at 256×256 resolution showing a plausible sequence of drawing steps.

What are the limitations of PaintsUndo?

The model struggles with photo-realistic content, complex compositions, special concepts, and may not match real workflows in some designs.

Can I use my own sketches as input?

Yes, PaintsUndo accepts sketches as input and can interpolate from external sketches (e.g., those produced by Anime2Sketch).