Fig. 3

Comparison of Compton scatter image and pixel-for-pixel classification. a Compton scatter X-ray image of a Noccaea caerulescens plant. b row-normalized confusion matrix showing evaluation of ground-truth. Horizontal axis sums up to 1. c Classification of the major plant structures: petiole (orange), leaf margin (violet), leaf vasculature (vein)(pink) and leaf interveinal tissue (tissue)(green)