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)

Single Header Quite Fast QOI(Quite OK Image Format) Implementation written in C++20

NBLIC is a lossless image compression algorithm with high compression ratio.

Delphi / Free Pascal Compitable JPEG-LS Codec

Haskell implementation of the QOI image format

Crystal bindings for Grok

A MATLAB implementation of JPEG 2000 Part 1 and Part 15 (HTJ2K) that complies with the conformance testing defined in JPEG 2000 Part 4. The goal of MatHTJ2K is to help a person who wants to develop an HTJ2K-based image compression system to understand the algorithms defined in HTJ2K.

Lossless Image Compression and Transmission in Matlab

This Powershell program can convert a variety of file types to WebP losslessly.

playing with dwt, lossy and lossless image compression

Experimental PNG

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.

Playing with lossless image compression based on the quadtree data structure

PAQ8PX compression archiver

CharLS Tools, a set of command line tools to CharLS JPEG-LS library

C QOI(Quick OK Image) Library

A simple command line tool for resizing the dimensions of an image or reducing the file size

100% Swift base implementation of QOI (Quite OK Image Format)