Multivariate Image Analysis Applied to Cross-Laminated Timber: Combined Hyperspectral Near-Infrared and X-ray Computed Tomography

Figure 3

(a) Partial least squares discriminant analysis (PLS-DA) model scatter plot shows that the knot is separated from clear wood and transverse layers are negatively correlated to longitudinal layers, (b) predicted RGB image, and (c) a predicted knot.