Research Article

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

Figure 16

Images of the investigated poplar samples used for the PLS-DA-based classification. (a) Acquired images and (b) images resulting from hypercube data rendering (i.e., false colours) according to samples spectral response in the SWIR range.
380536.fig.0016a
(a)
380536.fig.0016b
(b)