(a) image
(b) Ground Truth
(c) NFA+RNFA, R =0.86, P = 0.95, F = 0.90
(d) RNFAEdge, R =0.86, P = 0.94, F = 0.90
(e) CannyLines, R =0.79, P = 0.91, F = 0.84
(f) EDLines, R =0.64, P = 0.76, F = 0.70
(g) LSD, R =0.78, P = 0.85, F = 0.82