Image Compression
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[jpeg]
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Lossless Image Compression in O(n) Time
- Introducing QOI — the Quite OK Image format.
- It losslessly compresses RGB and RGBA images to a similar size of PNG, while offering a 20x-50x speedup in compression and 3x-4x speedup in decompression. All single-threaded, no SIMD. It's also stupidly simple.
- tl;dr: 300 lines of C, single header,
- Somewhere between RLE and LZW
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The Dark Horse of the Image Codec World: Near-Lossless Image Formats Using Ultra-Fast LZ Codecs
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[png]
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[jpeg2000]
- JPEG XL and the Pareto Front
- ArtsTechnicaFSF: Chrome’s JPEG XL killing shows how the web works under browser hegemony Google, with 80% of browser share, says there's not enough ecosystem interest.
- jpegxl in chrome! 2026
- Journey to JPEG XL: How open source experiments shaped the future of image coding 2026
- Interesting - they used new encoders to get 20% better compression with the established decoders
- Perceptual output comparisons/optimisations
- also linked in [history-of-graphics]
- RECOIL - Retro Computer Image Library
- Plugins/integrations for Windows, Linux(Gnome) for previewing know retro image formats
- Rediscovering Compuserve RLE Graphics black and white format from 1987