JXL is an interesting standard. Integrates a recompressor that shaves ~20% off .jpgs without further loss(!), FUIF for essentially-lossless images in a progress

JXL is an interesting standard. Integrates a recompressor that shaves ~20% off .jpgs without further loss(!), FUIF for essentially-lossless images in a progressive/interlaced mode like this, a separate lossless format, and a new lossy format with variable-sized DCTs and a bunch of other new tools (other transforms for DCT-unfriendly content, postfilter for DCT artifacts, new colorspace, chroma-from-luma...). It's intended to be royalty-free. I'm not sure if putting it all under one standard will make it hard to adopt, and/or if AVIF (based on AV1) will just become the new open advanced image format first. Interesting to see in any case. Brief presentation: https://www.itu.int/en/ITU-T/Workshops-and-Seminars/20191008/Documents/Touradj_Ebrahimi_Presentation.pdf https://www.itu.int/en/ITU-T/Workshops-and-Seminars/20191008... Longer presentation with more of the rationales for choices: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11137/111370K/JPEG-XL-next-generation-image-compression-architecture-and-coding-tools/10.1117/12.2529237.full?SSO=1 https://www.spiedigitallibrary.org/conference-proceedings-of... Draft standard: https://www.researchgate.net/publication/335134903_Committee_Draft_of_JPEG_XL_Image_Coding_System https://www.researchgate.net/publication/335134903_Committee... Play in your browser: http://libwebpjs.appspot.com/jpegxl/ http://libwebpjs.appspot.com/jpegxl/