Fig. 2From: TopoRoot: a method for computing hierarchy and fine-grained traits of maize roots from 3D imagingSegmenting a root image. A Thresholding the image \(I\) yields numerous topological errors such as disconnections (red box) and handles (cyan and purple boxes), and the stem has a hollow interior (green box). B Applying our filling heuristic followed by the algorithm of [20] yields a segmentation \(B\) with these topological errors removed and the stem filledBack to article page