JPEG XL image format reference implementation
World's Leading Open Source JPEG 2000 Codec
Open-source implementation of JPEG2000 Part-15 (or JPH or HTJ2K)
NBLI is a fast, better lossless image compression algorithm. The optimized version (fNBLI) can get 1.5x compression ratio, 8x faster encoding, and 1.2x faster decoding compared to PNG. It can also beat the SOTA JPEG-XL on photographs.
Single Header Quite Fast QOI(Quite OK Image Format) Implementation written in C++20
Hiroki Kojima, Yasuyo Kita, Ichiro Matsuda, Susumu Itoh, Yusuke Kameda, Kyohei Unno, Kei Kawamura: "Improved Probability Modeling for Lossless Image Coding Using Example Search and Adaptive Prediction", Proceedings of the 25th International Workshop on Advanced Image Technology 2022 (IWAIT 2022), Jan. 2022.
PAQ8PX compression archiver
Demo of a fast PNG encoder.
CharLS Tools, a set of command line tools to CharLS JPEG-LS library
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