COLOR CONVERSION PROCESSING UNIT

摘要

PURPOSE:To implement high-degree masking correction arithmetic operation effective as color correction at a high speed with respect to the color conversion processing unit for a color picture to process a picture such as a photograph in the print, newspaper and design fields or the like. CONSTITUTION:The color conversion processing unit having a picture data input means 1 converting an original picture into an electric signal and a color correction conversion means 4 applying masking arithmetic operation to the picture data to correct the color is provided with plural color correction term tables used for the color correction arithmetic operational of inputted picture data and a correction term coefficient table 3 having plural correction coefficient tables corresponding to the color correction term table, and the color correction term obtained from the correction term coefficient table 3 in the inputted picture data is subjected to color correction arithmetic operation based on the correction coefficient.