(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.82, P = 0.82, F = 0.82

(d) RNFAEdge, R =0.75, P = 0.87, F = 0.80

(e) CannyLines, R =0.74, P = 0.79, F = 0.77

(f) EDLines, R =0.59, P = 0.70, F = 0.64

(g) LSD, R =0.66, P = 0.79, F = 0.72