Figure 8

Histogram thresholding of 2 h and 12 h leaves on 1529 nm/1416 nm image.
A threshold (red bar) is placed in between the two modes in the histogram, enabling visualization of either a (a) dry (left) or (b) fresh (right) leaf.
Histogram thresholding of 2 h and 12 h leaves on 1529 nm/1416 nm image.
A threshold (red bar) is placed in between the two modes in the histogram, enabling visualization of either a (a) dry (left) or (b) fresh (right) leaf.