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

Figure 9

Photography (a) and visible images taken at 600 nm (b) and 680 nm (c) of details of Parch. 37. (d, e) Image processing results by PCA: score image of PC1 (variance 98.62%) and score image of PC2 (variance 0.68%).

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