(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.86, P = 0.94, F = 0.90

(d) RNFAEdge, R =0.81, P = 0.95, F = 0.88

(e) CannyLines, R =0.84, P = 0.91, F = 0.88

(f) EDLines, R =0.48, P = 0.71, F = 0.58

(g) LSD, R =0.68, P = 0.91, F = 0.78