(a) image

(b) Ground Truth

(c) RNFA, R =0.66, P = 0.53, F = 0.59

(d) EDPF, R =0.76, P = 0.34, F = 0.47

(e) SREdge, R =0.80, P = 0.33, F = 0.46

(f) ED, R =0.84, P = 0.28, F = 0.42

(g) CannyPF, R =0.84, P = 0.26, F = 0.40