Disclosed is a method for converting an input digital color image having a set of possible input colors to an output digital color image having a set of palette colors, the number of palette colors being less than the number of possible input colors, wherein the set of palette colors is determined based...http://www.google.fr/patents/US6859210?utm_source=gb-gplus-shareBrevet US6859210 - Method for representing a digital color image using a set of palette colors based on detected important colors
Method for representing a digital color image using a set of palette colors ...
