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.

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Hasnain says:

This was some pretty interesting algorithmic stuff.

“Seriously, I'm dumbfounded. BMP and TIFF have run-length-encoding and then GIF comes around with LZW. But there's nothing in between. Why? I found the space between RLE and LZW to be large enough to spend many days on. And there's a lot more to explore.”

Posted on 2021-11-25T06:10:08+0000