Patent ID: 7548343

Claim:
A method for recalibrating a multi-color imaging system wherein the imaging system is capable of outputting corrections by including weight-adjusted coefficients on process-sensitive memory color colors based on selected input target color values, the method comprising: a. forming selected input target process-sensitive color combinations, wherein one or more of the process-sensitive color combinations includes at least two different colors including a human sensitive memory color; measuring color values for each of the different color combinations of process-sensitive colors; b. comparing each of the measured color values to values corresponding to the input target color values that represent a desired condition of the imaging system; c. calculating an error value that represents a deviation of the measured color values from the input target color values; d. assigning weight-adjusting coefficients on one or more of the input target color values to reduce the error value to a predetermined degree, wherein the adjustment of the input target color values for one of the colors is performed independently of the adjustment of the input target color values for others of the colors and continued as needed to make all the corrections needed to match the input target process-sensitive color combinations; and e. further assigning weight-adjusting coefficients on one or more of the input target color values comprising the human sensitive memory color to reduce the error value to a predetermined degree, wherein the weight adjustment of the input target color values for one of the colors is performed independently of the weight adjustment of the input target color values for others of the colors such that error values for the human sensitive memory color are less than the other error values and continued as needed to make all the corrections needed to match the target color sensitive color combinations weight coefficients.