IMAGE PROCESSING METHOD, METHOD FOR GENERATING DEVIATION CONTRAST CONVERSION INFORMATION, METHOD FOR GENERATING NEUTRAL COLOR CONTRAST AMOUNT CONVERSION INFORMATION, STORAGE MEDIUM, IMAGE PROCESSING UNIT AND IMAGE PROCESSING SYSTEM

摘要

PROBLEM TO BE SOLVED: To reproduce an original image in a preferable way with small calculation amount by obtaining an input neutral color amount and an RGB input deviation amount from color input image information and obtaining RGB color output image information from deviation conversion information and each deviation amount or the like. SOLUTION: An image reader 12 being a color image scanner scans an optical unit having a CCD linear image sensor, a linear light source and a diffusion box diffusing a light from the linear light source in each prescribed direction, measures a light from a color reflection original via an RGB filter to obtain a reflection density of each picture element. Furthermore, deviation conversion information and neutral color density conversion information are read from a conversion information storage medium 17 and color output image information of each of primary colors R, G, B from the color input image information obtained by the image reader 12. Then an image processing unit 13 provides an output of the obtained color output image information to an image forming device 14.