(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.79, P = 0.91, F = 0.85

(d) RNFAEdge, R =0.79, P = 0.93, F = 0.85

(e) CannyLines, R =0.80, P = 0.87, F = 0.83

(f) EDLines, R =0.63, P = 0.76, F = 0.69

(g) LSD, R =0.72, P = 0.87, F = 0.79