For colour image compression for adaptive airthmat
2016-08-23
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arithmetic is a form of entropy used in loss-less data.
Normally, a string of characters such as the words "hello there" is
represented using a fixed number of bits per character, as in the code. When a string is converted to arithmetic encoding, frequently
used characters will be stored with fewer bits and not-so-frequently
occurring characters will be stored with more bits, resulting in fewer
bits used in total. Arithmetic coding differs from other forms of
entropy encoding such as huffman in that rather than separating the input into component symbols and
replacing each with a code, arithmetic coding encodes the entire message
into a single number .
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