(a) image

(b) Ground Truth

(c) RNFA, R =0.73, P = 0.54, F = 0.62

(d) EDPF, R =0.80, P = 0.46, F = 0.58

(e) SREdge, R =0.81, P = 0.56, F = 0.66

(f) ED, R =0.82, P = 0.50, F = 0.62

(g) CannyPF, R =0.82, P = 0.43, F = 0.56