Research Article

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

Table 6

Nonlinear regression analysis applied to the peak ratio as function of the chromatic coordinates in poplar wood.

/
BSignificance

Intercept1.4582***
0.000092***
−0.00373***
−0.001328***

adj. = 0.999.
/ = .
Statistically significant.
Very high statistical significance.