Figure 4

Broadband SWIR images of boxwood leaves and corresponding histograms.
(a) Single leaf (2 h), (b) leaves with similar moisture levels (2 h post-detachment), (c) leaves with a 20% difference in moisture level (2 h and 12 h post-detachment). All images were optimized for the best visual appearance by adjusting the corresponding image histogram. Colormap “jet”: arrow shows the increase in transmission intensity. Images intensities were normalized to the light source.