Slides: https://www.slideshare.net/cloudinarymarketing/imagecon-2019-jon-sneyer https://www.slideshare.net/cloudinarymarketing/imagecon-2019... Background: JPE

Slides: https://www.slideshare.net/cloudinarymarketing/imagecon-2019-jon-sneyer https://www.slideshare.net/cloudinarymarketing/imagecon-2019... Background: JPEG XL is a combination of Cloudinary's FUIF [1] (successor of FLIF [2]) and Google's Pik [3]. Committee Draft (Aug 2019): https://arxiv.org/abs/1908.03565 https://arxiv.org/abs/1908.03565 Technical Details: 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 https://www.spiedigitallibrary.org/conference-proceedings-of... Features / Goals: - high quality compression (> 60% over JPEG-1) - royalty-free with open source implementations available from the start - versatile: supports alpha transparency, high bit depth (16-bit), lossless compression, animations - progressive decoding / "responsive by design" - legacy-friendly: reversible transcoding of JPEGs with 22% size reduction (demo available [4]) Comparisons: - JPEG 2000, JPEG XR: only marginal compression improvements - WebP: limited (8-bit, 4:2:0), no progressive decoding - BPG/HEIF (HEVC): patent-encumbered (not royalty-free), no progressive decoding, complex - AVIF (AV1): no progressive decoding, complex, slow? [1] https://cloudinary.com/blog/introducing_fuif_responsive_images_by_design https://cloudinary.com/blog/introducing_fuif_responsive_imag... [2] http://flif.info/ http://flif.info/ [3] https://github.com/google/pik https://github.com/google/pik [4] https://google.github.io/brunsli/ https://google.github.io/brunsli/