Fig. 1. Location of surfaces and illuminants in CIE1976 u'v' chromaticity diagram used in asymmetric color matching experiments in the Ref. [13]. (a) Location of D65 and 4 chromatic illuminants; (b) location of 12 Munsell surfaces under D65 illuminant

Fig. 2. Example of stimuli for red test illuminant condition^[13]

Fig. 3. Chromaticity mismatch areas for a change from D65 to a chromatic illuminant. (a) Red illuminant; (b) green illuminant; (c) blue illuminant; (d) yellow illuminant

Fig. 4. Metamer mismatching indices for 12 Munsell surfaces for the change from D65 to a chromatic illuminant

Fig. 5. Comparison of color constancy indices with metamer mismatching indices of 12 Munsell surfaces under four chromatic illuminants

Fig. 6. Comparison of matching chromaticity value of observer under four chromatic illuminants and two theoretical chromaticity values in the CIE1976 u'v' chromaticity diagram. (a) Red illuminant; (b) green illuminant; (c) blue illuminant; (d) yellow illuminant

Fig. 7. Euclidean distance between matched chromaticity points on 12 Munsell surfaces under four chromatic illuminants and theoretical chromaticity points based on complete color constancy and mismatch centroid chromaticity points. (a) Red illuminant; (b) green illuminant; (c) blue illuminant; (d) yellow illuminant

Table 1. Standard error of mean value of CIE1976 u' and v' chromaticity coordinates matched by five observers