COLOR INFORMATION GENERATION DEVICE, COLOR INFORMATION GENERATION METHOD, AND RECORDING MEDIUM

摘要

Spatial characteristics relating to color attributes cannot easily be perceived in conventional practice. The present invention comprises a color database (12) in which a mutual correlation is established among the L*a*b* values of the L*a*b* colorimetric system as attributes for color stimulus, RGB values as attributes for computer color, and a sphere radius that is proportional to a color difference and is the radius of a color sphere drawn about a L*a*b* value in the color solid of the L*a*b* colorimetric system, the L*a*b* value being set in advance as a value that indicates the level at which a color is distinguishable by human sensory ability. When the L*a*b* value or RGB value is inputted to an input unit (41), a display data generator (40) references the color database and generates display data in which a color sphere drawn about an L*a*b* value is disposed inside the color solid of the L*a*b* colorimetric system of a line drawing, the L*a*b* value being correlated with the L*a*b* value or the RGB value inputted to the input unit, and the color sphere being colored at least on the surface thereof and having the correlated sphere radius.