
JPEG Joint Photographic Experts Group. The international consortium of hardware, software, and publishing interests that, under the auspices of the ISO, has defined a universal standard for digital compression and decompression of still images for use in computer systems. JPEG compresses at about a 20:1 ratio before visible image degradation occurs. It is lossy data compression standard that was originally designed for still images but can also compress real-time video (30 frames per second) and animation. Lossy compression permanently discards unnecessary data, resulting in some loss of precision.
( ,
Mon 17 Sep 2007, 16:24,
archived)