FLIF Lossless Image Format Claims to Outperform PNG, JPEG2000, WebP, and BPG

FLIF, which stands for Free Lossless Image Format, is a new lossless image format that is said to provide better compression ration than PNG, lossless JPEG2000, lossless WebP, and lossless BPG for all king of images including medical images, geographical maps, cliparts and so on. Beside being lossless, FLIF is also progressive, so a lower quality version of the image can be displayed early while the download is still in progress. The developer has uploaded a video comparing how a PNG image and FLIF image would load in a slow network. Other FLIF features include: Lossless compression Greyscale, RGB, RGBA Up to 16 bits color depth per channel (high dynamic range) Interlaced (default) or non-interlaced Animation support “Encoding and decoding speeds are not blazingly fast, but they are in the right ballpark” Based on MANIAC (Meta-Adaptive Near-zero Integer Arithmetic Coding) algorithm developed by Jon Sneyers and Pieter Wuille. (However details don’t seem to be available) FLIF is open source with …

WebP Image Format Could Replace JPEG, PNG and GIF

In September 2010, Google announced the WebP image format with lossy compression.  Since last month, WebP can also support animation, ICC profile, XMP metadata and tiling. Today, it announced lossless compression and transparency support. WebP could be used as an alternative to JPEG, with 25–34% better compression compared to JPEG images at equivalent SSIM index as well as PNG as it now supports lossless compression and transparency – also known as alpha channel – in both the lossless and lossy modes. On average, Google got a 45% reduction in size when starting with PNGs found on the web, and a 28% reduction in size compared to PNGs that are re-compressed with pngcrush and pngout. Photos typically encoded as JPEG can be encoded in WebP lossy mode to achieve smaller file size. Icons and graphics can be encoded better in WebP lossless mode than in PNG. WebP lossy with alpha can be used to create transparent images that have minimal visual …