A method for estimating colors due to fuzzy reasoning

It was well known that spectral reflectance information taken by using a CCD camera through X, Y and Z filters was much related to both brilliance and illumination. It was also estimated colors per four groups composed of five similar colors: achromatic colors, red, green and blue. However, the similar color groups of cyan, magenta and yellow, which are complementary colors of red, green and blue, were not examined. Therefore, this paper proposed a color estimation method due to fuzzy reasoning for thirty-five colors composed of seven similar color groups. First, we estimate a color group to which an objective color belongs in seven groups. Secondly, the objective color is extracted from five similar colors in the estimated group. The reliability of the proposed approach is demonstrated in an experiment.