TABLE 3.

Comparison of the color cast correction accuracy in terms of CIEDE2000 calculated with the reference mineral green pigments.

Method	Mean	Max	Min	Rang	SD	Kurtosis	CoV
Original	1.70	4.47	0.45	4.01	1.21	2.33	0.71
Gray world	12.42	18.23	7.83	10.40	2.51	2.91	0.20
max-RGB	4.65	10.41	0.92	9.48	2.38	2.91	0.51
Chromadapt	12.96	18.23	8.47	9.76	2.44	2.68	0.19
PCA	9.91	15.87	4.77	11.10	2.70	2.76	0.27
Our method	0.56	1.53	0.001	1.53	0.42	2.66	0.75