Figure 7.

The graph with the sharp peak is the Outline Error Distribution (OED) graph of MACC (ROI(r₁, im), im) and MACC (ROI(r₂, im), im), and indicates that most compared ROIs have near zero area disagreement. The flatter graph is the Outline Error OED graph of ROI(r₁, im) and ROI(r₂, im), and indicates a broad range of area disagreement between corresponding ROIs. Negative abscissa values indicate that operator 1’s ROIs are larger than operator 2’s ROIs, and positive values indicate the opposite.