Heritage Science

Table 5 The result of RMSE

From: Quantitative analysis of mixed pigments for Chinese paintings using the improved method of ratio spectra derivative spectrophotometry based on mode

Standard endmember	Method
	NMF		FastICA
	Component 1	Component 2	Component 1	Component 2
Cyanine	0.0303	0.0690	0.1402	0.1406
Ocher	0.0132	0.1110	0.1680	0.1509
Zinnober	0.0009	0.0340	0.1906	0.0719
Gamboge	0.0189	0.0125	0.1241	0.0194
Azurite	0.0890	0.0062	0.0549	0.1840
Orpiment	0.0674	0.1429	0.1172	0.0119

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