Retinal Image Denoising via Bilateral Filter with a Spatial Kernel of Optimally Oriented Line Spread Function

Table 2

Quantitative results in preserving bifurcated vascular structure.

Image in Figure 5	Se	Sp	Acc	AUC	DC
(b) Bifurcated vessel image	1	1	1	1	1
(c) Result of BLF	0.871	0.994	0.993	0.935	0.925
(d) Result of our method	0.933	0.998	0.951	0.966	0.966
(f) Noisy bifurcated vessel image	0.836	0.998	0.864	0.918	0.911
(g) Result of BLF	0.812	0.998	0.840	0.906	0.896
(h) Result of our method	0.908	0.998	0.955	0.953	0.948