(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.86, P = 0.80, F = 0.83

(d) RNFAEdge, R =0.83, P = 0.81, F = 0.82

(e) CannyLines, R =0.82, P = 0.79, F = 0.80

(f) EDLines, R =0.64, P = 0.66, F = 0.65

(g) LSD, R =0.77, P = 0.75, F = 0.76