Patent ID: 8064113
Filing Date: 2011-11-22
Classification: G01J

Abstract:
1. A color difference display method comprising the steps of: inputting data associated with spectral reflectances of respective patches on first and second measurement charts which record a plurality of patches; calculating a hue difference between corresponding patches at identical positions on the first and second measurement charts based on the data input in the inputting step; specifying a color determined by the hue difference calculated in the calculating step; and displaying a graphical object for each patch that expresses at least the hue difference calculated in the calculating step based on the color specified in the specifying step, so that an operator can visually recognize the calculated hue difference from the graphical object, wherein the displaying step includes a step of further displaying a color difference calculated from a first value and a second value associated with the spectral reflectance characteristics as the graphical object, and wherein the displaying step includes a step of displaying a three-dimensional graph as the graphical object.