Patent ID: 6711288
Filing Date: 2004-03-23
Classification: G06K,G06T,Y10S

Abstract:
A method for designating a local representative color (LRC) values of a color image, comprising:(a) dividing a color image into a plurality of blocks; (b) building a color histogram for each block and designating the maximum color value of the color histogram as a LRC value of a corresponding block if the maximum color value meets a first condition; and (c) repeating step (b) until the last block of the image is processed, wherein if the maximum color value of a block does not meet the first condition, the method further comprises, building hue group histograms from adjacent blocks of the block, selecting a maximum color group from the hue group histograms and determining a representative value of the maximum color group, and designating the representative value of the maximum color group as the LRC value of the block if the representative value of the maximum color group meets a second condition.