Patent ID: 6823081
Filing Date: 2004-11-23
Classification: G06K,H04N

Abstract:
A method for performing color dropout on a digitized document, the method comprising the steps of:(a) obtaining color values from the digitized document requiring only two colors, a background and a color of interest to a user; (b) transforming the color values of the background and the color of interest into an identical gray scale value according to a color dropout function based substantially on a minimization process on substantially an entire measured color data set; (c) obtaining a gray scale value different from the identical gray scale value for the remaining portion of the image according to the color dropout function; and (d) thresholding the gray scale values obtained from steps (b) and (c) to obtain a binary image that substantially eliminates color classification error and retains character integrity by a functional transformation that suppresses color fringe artifacts.