(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.71, P = 0.79, F = 0.75

(d) RNFAEdge, R =0.70, P = 0.84, F = 0.77

(e) CannyLines, R =0.55, P = 0.69, F = 0.61

(f) EDLines, R =0.42, P = 0.56, F = 0.48

(g) LSD, R =0.49, P = 0.64, F = 0.55