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JPEG. Joint
Photographic Experts Group. A group that has recommended a
compression
algorithm for still digital images
that can compress with ratios of over up to 30:1 giving a file
size of approximately 20 kbytes
per field of video. It is also the name
of the format itself.
There is a variant called Motion
JPEG (MJPEG). The latest version is
JPEG2000.