Patent ID: 7236263
Filing Date: 2007-06-26
Classification: H04N

Abstract:
1. A method for processing image data, comprising: generating color image data from a scanned image, the color image data including RGB data; converting the RGB data to CMY data; translating the CMY data for a pixel to CMYK data; calculating the differences between each of the values of the CMY data for the pixel, wherein the values of the CMY data for the pixel are close to each other if each of the calculated differences is less than a predetermined threshold; setting a weighting coefficient for a pixel based on the values of the CMY data for the pixel; identifying a particular region in which the pixel is located as a black color region or a non-black color region; and altering the value of the K data for the pixel based on the weighting coefficient if the particular region is a non-black color region.