(a) image
(b) Ground Truth
(c) NFA+RNFA, R =0.86, P = 0.77, F = 0.81
(d) RNFAEdge, R =0.83, P = 0.81, F = 0.82
(e) CannyLines, R =0.76, P = 0.75, F = 0.75
(f) EDLines, R =0.71, P = 0.70, F = 0.71
(g) LSD, R =0.78, P = 0.74, F = 0.76