(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.84, P = 0.82, F = 0.83

(d) RNFAEdge, R =0.78, P = 0.86, F = 0.81

(e) CannyLines, R =0.82, P = 0.81, F = 0.81

(f) EDLines, R =0.75, P = 0.71, F = 0.73

(g) LSD, R =0.76, P = 0.77, F = 0.77