| http://www.w3.org/ns/prov#value | - A method for compressing pixels of image data, including the steps of:(a) receiving a set of N of the pixels, where N is an integer greater than one, and selecting one of the pixels in the set as an uncompressed anchor pixel; (b) generating compressed pixels by compressing N-1 others of the pixels in the set in accordance with a compression scheme by which each of said N-1 others of the pixels is
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