Joint Photographic Experts Group

JPEG

 in full Joint Photographic Experts Group

Standard computer file format for storing graphic images in a compressed form for general use. JPEG images are compressed using a mathematical algorithm. A variety of encoding processes can be used, depending on whether the user's goal is the highest quality of image (lossless) or smallest file size (lossy). The JPEG and GIF formats are the most commonly used graphics formats on the Internet for lossy and lossless data compression, respectively.

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Joint Photographic Experts Group [¦jȯint ‚fōd·ə‚graf·iks ′ek‚spərts ‚grüp]

(computer science)

An international group that sets standards for continuous-tone image (still and video) coding.

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(image, body, file format, standard)

Joint Photographic Experts Group - (JPEG) The original name of the committee that designed the standard image compression algorithm. JPEG is designed for compressing either full-colour or grey-scale digital images of "natural", real-world scenes. It does not work so well on non-realistic images, such as cartoons or line drawings. JPEG does not handle compression of black-and-white (1 bit-per-pixel) images or moving pictures. Standards for compressing those types of images are being worked on by other committees, named JBIG and MPEG. http://jpeg.org/. Filename extension: .jpg, .jpeg. See also PJPEG.