A web developer implementing JPEG XL support found the format's decoding performance too slow for practical web use, with large images taking 1-2 seconds to load even after optimization. Beyond performance concerns, the JPEG XL library adds significant complexity with 508 source files and many dependencies, making maintenance difficult for marginal improvements over existing formats like WebP and PNG.
ImageArm is a native macOS app that compresses images up to 80% without visible quality loss using multiple competing compression tools and GPU Metal acceleration. It offers drag-and-drop functionality, headless mode for scripts, Finder integration, and is free and open source.
Truncated SVD is a matrix factorization technique that reduces data dimensionality by decomposing a matrix into U, Σ, and V components, then zeroing out smaller singular values to reconstruct an approximation. Applied to a 1024×1024 moon image, keeping just 32 of 1024 components achieves 16x data reduction while preserving recognizable image quality, demonstrating how leading components capture most information.