Soft classification performance of six exemplary semantic categories on noisy images (σ = 0.01), (a)–(c) uses the 2 × 2 × 3 filter bank so that the x-axis has 12 channels, (d)–(f) uses the 3 × 3 × 3 filter bank so that the x-axis has 27 channels. Each subfigure shows four performance curves: train set AUC (red dashed line), train set ACC (red line), validation set AUC (green dashed line), and test set ACC (blue line).