(a) image

(b) Ground Truth

(c) RNFA, R =0.67, P = 0.33, F = 0.44

(d) EDPF, R =0.79, P = 0.23, F = 0.35

(e) SREdge, R =0.85, P = 0.22, F = 0.35

(f) ED, R =0.87, P = 0.18, F = 0.30

(g) CannyPF, R =0.85, P = 0.17, F = 0.29