UNIFORMITY OF SOME RECENT COLOR METRICS TESTED WITH AN ACCURATE COLOR-DIFFERENCE TOLERANCE DATASET

The Rochester Institute of Technology-Dupont dataset [Color Res. Appl. 16, 297-316 (1991)] has been used to analyze the uniformity of seven color metrics, developed after CIELUV and CIELAB, with methods similar to those previously applied to several other classical datasets [J. O pt. Soc. Am. A 9, 1247-1253 (1992)]. Significant performance improveme nts over CIELAB were found with several CIELAB-based metrics, mainly w ith the model recently proposed by Commission Internationale de L'Ecla irage Technical Committee 1-29 [Color Res. Appl. 18, 137-139 (1993)]. Several significant differences found between some pairs of metrics be came insignificant when we selected from the Rochester Institute of Te chnology-Dupont dataset pairs of samples with only chromaticity differ ences.