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overview.jpg (47039 bytes) In a nutshell, the products of data compression research are compression algorithms, methods that reduce the number of symbols used to represent source information, therefore reducing the amount of space needed to store the source information or the amount of time necessary to transmit it for a given channel capacity. The mapping from source symbols into fewer target symbols is referred to as compression. This site surveys the field of data compression from a technical perspective, providing overviews of the fundamental compression algorithms on which more complex algorithms are built, as well as detailed discussions concerning MP3 audio compression and JPEG image compression, algorithms that, though relatively complex, are applicable to real life in the modern day.

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