(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.90, P = 0.96, F = 0.93

(d) RNFAEdge, R =0.89, P = 0.92, F = 0.91

(e) CannyLines, R =0.79, P = 0.94, F = 0.86

(f) EDLines, R =0.71, P = 0.85, F = 0.77

(g) LSD, R =0.82, P = 0.89, F = 0.85