For an online demo, you can run this tool developed by univeous.
A Work-in-progress. This pixel-art extractor uses various sophisticated image processing methods to try its best to extract machine generated and just badly aligned pixel-art.
The pixel-art extractor works with virtual pixel sizes down to 2 pixels. Any smaller and the art won't be properly detected. The extractor is not flawless and can often fail on very badly aliased or misaligned art.
python cli.py --image_path_pattern "./images" --split_distance 10 --create_summary
The following are the three summary plots produced during extraction of art generated by DALL-E 3 (except for the grid).
