(a) image

(b) Ground Truth

(c) RNFA, R =0.57, P = 0.39, F = 0.46

(d) EDPF, R =0.70, P = 0.17, F = 0.28

(e) SREdge, R =0.84, P = 0.10, F = 0.18

(f) ED, R =0.86, P = 0.08, F = 0.15

(g) CannyPF, R =0.86, P = 0.07, F = 0.14