google / pik

A new lossy/lossless image format for photos and the internet
MIT License
831 stars 51 forks source link

State of the art entropy coding #69

Closed LifeIsStrange closed 4 years ago

LifeIsStrange commented 4 years ago

https://github.com/Cyan4973/FiniteStateEntropy This is used by zstd the succcesor of gzip and deflate, maybe you could benefit from it too for JPEG XL?

jan-wassenberg commented 4 years ago

Hi, thanks for reaching out! We have experimented with FSE and liked that it is very well-tuned for speed, but we got a bit more compression with the rANS module.