(a) image

(b) Ground Truth

(c) RNFA, R =0.70, P = 0.29, F = 0.41

(d) EDPF, R =0.60, P = 0.37, F = 0.46

(e) SREdge, R =0.86, P = 0.13, F = 0.23

(f) ED, R =0.91, P = 0.12, F = 0.21

(g) CannyPF, R =0.96, P = 0.12, F = 0.22