Color Control for Scanning Input Image Based on Subsectional Fitting

Color control for computer input image is a key and difficult technique in the color reproduction in information optics. A new color control model based on subsectional fitting to correct color conversion error for scanning image is presented. First, color error sources and color rendering mechanism are analyzed in theory. Then, the paper takes standard color target for experimental sample and substitutes color blocks in color shade district for complete color space to solve the difficulties of experimental color blocks selecting. Third, the model uses subsectional fitting algorithm to built three dimension color conversion curve to correct color conversion error. Finally, the experimental results show that the model can improve scanner color control accuracy and can be used in scanner color control practically.