Patent ID: 7339701

Claim:
A method for color correcting trap pixels generated by a trap engine for a print engine that cause colors to print differently on the edges of images than in uniform areas of the images, comprising: generating a trap pixel having a trap color based on colors associated with abutting objects and color characteristics of the print engine; generating a color correction for the trap pixel comprising: for each color seperation, printing a set of actual color patches corresponding to a desired set of colors, wherein each color patch is sufficiently large that color differences between an edge region and a uniform area region can be measured; defining an edge region and a uniform area region in each of the patches; for each color patch in the set of actual color patches; measuring color in the edge region and color in the uniform area region; determining a difference between color in the edge region of the patch and color in the uniform area region of the patch; and generating an edge response to adjust color output of the print engine in the edge region to substantially match color output in the uniform area region; and applying the edge response to the trap pixel.