JPEG does not support lossless compression. There was an extension to the standard in 1993 but most de/encoders don’t implement that and it never took off. With JPEG XL you get more bang for your buck and the same visual quality will get you a smaller file. There would be no more need for thumbnails because of improved progressive decoding.
Comment on Beyond RGB: A new image file format efficiently stores invisible light data
uis@lemm.ee 2 months agoBoth og JPEG and JXL support lossless compression.
wischi@programming.dev 2 months ago
wischi@programming.dev 2 months ago
uis@lemm.ee 2 months ago
Then same can be said about JPEG LS and JPEG XL. Most browsers don’t implement that.