(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.83, P = 0.88, F = 0.86

(d) RNFAEdge, R =0.78, P = 0.89, F = 0.83

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

(f) EDLines, R =0.44, P = 0.70, F = 0.54

(g) LSD, R =0.56, P = 0.85, F = 0.68