Characterization and Digital Restauration of XIV-XV Centuries Written Parchments by Means of Nondestructive Techniques: Three Case Studies

Figure 8

Photography (a, d) and UV fluorescence images taken at 420 nm (b, e) and 680 nm (c, f) of two details of Parch. 37. (g, h) Image processing results by PCA: score image of PC1 (variance 99.26%) and score image of PC2 (variance 0.57%).

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