Surface Investigation of Photo-Degraded Wood by Colour Monitoring, Infrared Spectroscopy, and Hyperspectral Imaging

Table 7

Sensitivity and specificity for the PLS-DA model built for the different wood samples, based on 81 wavelengths.

		Class 1 (H0)	Class 2 (H24)	Class 3 (H312)	Class 4 (H504)
Sensitivity	Calibration	0.996	0.972	0.788	0.972
	Cross Validation	0.996	0.971	0.776	0.971
Specificity	Calibration	0.990	0.941	0.746	0.932
	Cross Validation	0.989	0.938	0.744	0.930