(a) image

(b) Ground Truth

(c) RNFA, R =0.81, P = 0.89, F = 0.85

(d) EDPF, R =0.82, P = 0.78, F = 0.80

(e) SREdge, R =0.76, P = 0.79, F = 0.77

(f) ED, R =0.79, P = 0.71, F = 0.74

(g) CannyPF, R =0.80, P = 0.70, F = 0.74