(a) image

(b) Ground Truth

(c) RNFA, R =0.47, P = 0.12, F = 0.19

(d) EDPF, R =0.64, P = 0.11, F = 0.19

(e) SREdge, R =0.81, P = 0.08, F = 0.14

(f) ED, R =0.88, P = 0.06, F = 0.12

(g) CannyPF, R =0.82, P = 0.06, F = 0.12