Figure 9
From: Tunable X-ray dark-field imaging for sub-resolution feature size quantification in porous media

Left: classification from dark-field AFS values (analogous to Fig. 8), color saturation is now scaled by the distance from the classification decision boundary, a grayish color means “close to the decision boundary”. Right: inconsistently classified particles in red. The inconsistently classified particles seem not related to proximity to the decision boundary.