(a) image

(b) Ground Truth

(c) RNFA, R =0.65, P = 0.63, F = 0.64

(d) EDPF, R =0.71, P = 0.41, F = 0.52

(e) SREdge, R =0.76, P = 0.41, F = 0.53

(f) ED, R =0.81, P = 0.30, F = 0.44

(g) CannyPF, R =0.81, P = 0.29, F = 0.43