(a) image

(b) Ground Truth

(c) RNFA, R =0.59, P = 0.42, F = 0.49

(d) EDPF, R =0.68, P = 0.26, F = 0.37

(e) SREdge, R =0.82, P = 0.22, F = 0.34

(f) ED, R =0.81, P = 0.19, F = 0.31

(g) CannyPF, R =0.82, P = 0.19, F = 0.31