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The WebP container (i.e., RIFF container for WebP) allows feature support over and above the basic use case of WebP (i.e., a file containing a single image encoded as a VP8 key frame). The WebP container provides additional support for: Metadata An image may have metadata stored in Exif or XMP formats. Transparency
Compressing drawings or diagrams with JPEG results in an image of poor quality, because the human eye can spot the compression artifacts around the edges. Another drawback is the large file size you will end up with. JPEG compression has many options but most commonly only two colour spaces: 24-bit RGB (8 bits per sample) and 8-bit greyscale.
PicaJet - Can read XMP for JPG, TIFF and DNG formats (Microsoft Windows). Picasa - Image organizer/viewer, uses XMP for face tagging (Microsoft Windows, Mac OS X, Linux) PixelPeeper - can read Exif and XMP metadata from JPG files. Also, it can turn XMP metadata into Lightroom-compatible presets.
WebP is an open image format released in 2010 that uses both lossless and lossy compression. It was designed by Google to reduce image file size to speed up web page loading: its principal purpose is to supersede JPEG as the primary format for photographs on the web. WebP is based on VP8's intra-frame coding and uses a container based on RIFF.
WebP: WebP image format Google.webp image/webp General purpose royalty-free WMF: Windows Metafile Format Microsoft.wmf, .wmz XAR: Xar Xara: Xar (graphics).xar application/vnd.xara Xara Photo & Graphic Designer: Yes XBM: X BitMap, colour variant of original black-and-white bitmap (bmp) format .xbm, .bm,.icon, .bitmap image/x-xbitmap
The JPEG XL call for proposals [9] talks about the requirement of substantially better compression efficiency (60% improvement) comparing to JPEG. The standard is expected to outperform the still image compression performance shown by HEIC, AVIF, WebP, and JPEG 2000.