Figure 6.

Box-plot charts for each evaluation metric and dataset. Symbols $(\downarrow )$ and $(\uparrow )$ indicate that “lower is better” and “higher is better”, respectively. (a) Box-plot distribution for MSE metric $(\downarrow )$; (b) box-plot distribution for SSIM metric $(\uparrow )$; (c) box-plot distribution for Dice metric $(\uparrow )$; (d) box-plot distribution for GC metric $(\uparrow )$.