Color comparing method and color comparing device

Abstract

A color comparing device performs: a reference-information acquiring step (step S1) configured to acquire a measured color value at a plurality of reference points in a reference item containing a color irregularity; a target-information acquiring step (step S2) configured to acquire a measured color value at a plurality of measurement points in a target object; a calculating step (step S4) configured to combine the reference points and the measurement points to calculate a Euclidean distance on a color space coordinate between the reference points and the measurement points that are combined; and a determining step (step S6) configured to compare a predetermined threshold value and the Euclidean distance calculated on a basis of at least a combination from among combinations of the reference points and the measurement points to determine whether or not a color of the reference item and a color of the target object are similar.

Dependencies are inferred from the claim text.