(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.85, P = 0.83, F = 0.84

(d) RNFAEdge, R =0.81, P = 0.87, F = 0.84

(e) CannyLines, R =0.78, P = 0.85, F = 0.82

(f) EDLines, R =0.74, P = 0.79, F = 0.77

(g) LSD, R =0.77, P = 0.80, F = 0.78