(a) image

(b) Ground Truth

(c) RNFA, R =0.39, P = 0.34, F = 0.37

(d) EDPF, R =0.63, P = 0.14, F = 0.23

(e) SREdge, R =0.73, P = 0.18, F = 0.29

(f) ED, R =0.74, P = 0.14, F = 0.23

(g) CannyPF, R =0.78, P = 0.11, F = 0.20