A Multivariate Methodological Workflow for the Analysis of FTIR Chemical Mapping Applied on Historic Paint Stratigraphies

Figure 6

Sample PO1—score maps. (a) PC1, (b) PC2, (c) PC3, (d) PC4, (e) PC5, and (f) PC false colour image (RGB) obtained by coding the PC3, PC4, and PC5 score values as the intensity of the red, green, and blue channels, respectively.

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