(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.92, P = 0.92, F = 0.92

(d) RNFAEdge, R =0.89, P = 0.93, F = 0.91

(e) CannyLines, R =0.77, P = 0.92, F = 0.84

(f) EDLines, R =0.63, P = 0.78, F = 0.70

(g) LSD, R =0.74, P = 0.91, F = 0.82