(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.88, P = 0.84, F = 0.86

(d) RNFAEdge, R =0.81, P = 0.88, F = 0.85

(e) CannyLines, R =0.83, P = 0.80, F = 0.81

(f) EDLines, R =0.69, P = 0.70, F = 0.69

(g) LSD, R =0.73, P = 0.75, F = 0.74