Display apparatus, display method, and control program

A color evaluation apparatus comprising:

• an input unit adapted to input data associated with spectral reflectances of respective patches on first and second measurement charts which record a plurality of patches;
• a calculation unit adapted to calculate a hue difference between corresponding patches at identical positions on the first and second measurement charts based on the data input by said input unit;
• a specifying unit adapted to specify a color determined by the hue difference calculated by said calculation unit;
• and
• a display unit adapted to display, for each patch, the hue difference calculated by said calculation unit based on the color specified by said specifying unit.

A computer-readable storage medium storing a control program which makes a computer execute a color difference display method, said 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, for each patch, the hue difference calculated in the calculating step based on the color specified in the specifying step.