Patent ID: 7327372

Claim:
A microprocessor system having a color correcting parameter calculator for use in calculating color correcting parameters of an object color image device used to correct colors of said object color image device where said color correcting parameters of the object color image device are different from a reference color image device, comprising: means for calculating a reference target color after color correction in response to input colors and their color reference correcting parameters related to the reference color image device; means for calculating reference target color perception values and reference color perception values in connection with the reference target colors and the input colors, respectively, together with object color perception values in connection with the input colors given also to the object color image device; means for searching for a specific color which has a minimum color difference with each input color, in response to the reference target color perception values, the reference color perception values, and the object color perception values; means for calculating an object target color in connection with the object color image device on the basis of the reference target color perception values corresponding to the specific color; and means for calculating the object color correcting parameters of the object color image device on the basis of the object target color and each of the object input colors, wherein the calculated object color correcting parameters are used to correct colors of the object color image device.