(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.94, P = 0.95, F = 0.95

(d) RNFAEdge, R =0.92, P = 0.95, F = 0.93

(e) CannyLines, R =0.85, P = 0.96, F = 0.90

(f) EDLines, R =0.78, P = 0.89, F = 0.83

(g) LSD, R =0.86, P = 0.92, F = 0.89