Zmsfm_judy_instaloss.zip
: It serves as a benchmark to show how JPEG XL can take a standard lossy JPEG and compress it further (often by 20% or more) without losing any data.
: The primary purpose of this file is to demonstrate the JPEG XL ability to "transcode" existing JPEG files into a more efficient format while maintaining the option for bit-perfect reconstruction (lossless) or visually identical (lossy) versions at significantly smaller file sizes. Technical Significance ZMSFM_Judy_Instaloss.zip
For more technical deep dives, you can find discussions on this specific test case in the JPEG XL Community Wiki or by reviewing the JPEG Committee test images documentation. : It serves as a benchmark to show