Patent ID: 8401289

Claim:
A method for matching colors between two systems comprising: comparing an appearance of a first white color associated with a first color imaging system and a second white color associated with a second color imaging system, wherein tristimulus values of the first white color and second white color are similar; empirically determining a fixed correction to the tristimulus values of the second white color associated with the second color imaging system in order to achieve a visual match to the first white color of the first color imaging system; measuring a first set of spectral values for a first color associated with the first color imaging system; determining a first set of tristimulus values from the first set of spectral values; measuring a second set of spectral values for a second color associated with the second color imaging system; determining a second set of tristimulus values from the second set of spectral values; applying a correction to the tristimulus values of the second color, the correction being a function of the tristimulus values as well as a function of the fixed correction; determining a difference between the tristimulus value of the first color and the corrected tristimulus value of the second color; and adjusting the second color to reduce the difference.