Comparisons between Color- Space Scales, Uniform-Color- Scale Atlases, and Color- Difference Formulae

摘要

Color-space metrics are considered and three main aspects are analyzed:(1)the relation between small and large color differences;(2)the relation between space metrics and color-difference formulae; (3)the color-scale comparison between CIE 1931 and CIE 1964 observers. The analysis, based on daylight adaptation, is made for the 2° visual field on a chromaticity diagram with uniform scales according with the MacAdam ellipses and, for the 10° visual field, on the OSA-UCS~2,3.