(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.90, P = 0.95, F = 0.92

(d) RNFAEdge, R =0.87, P = 0.95, F = 0.91

(e) CannyLines, R =0.90, P = 0.92, F = 0.91

(f) EDLines, R =0.70, P = 0.93, F = 0.80

(g) LSD, R =0.78, P = 0.93, F = 0.85