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

Figure 6

Our approach can preserve vessel when denoising image whether the image bears sparse spot noise or dense noise.

(a) Binary mask of vessel

(b) Vessel image polluted by sparse spot noise

(c) Result of BLF

(d) Result of our method

(e) Binary mask of vessel

(f) Vessel image polluted by dense noise

(g) Result of BLF

(h) Result of our method