Charls is an optimized implementation of the jpeg-ls standard for lossless and near-lossless image compression

jpeg-ls (iso-14495-1/itu-t.87) is a standard derived from the hewlett packard loco algorithm. jpeg ls has low complexity (meaning fast compression) and high compression ratios, similar to jpeg 2000. jpeg-ls is more similar to the old lossless jpeg than to jpeg 2000, but interestingly the two different techniques result in vastly different performance characteristics.

this package contains the development files.