Image Denoising Based on Dilated Singularity Prior

Figure 1

The steps for locating singularity prior and making the mask. (a)–(c) three steps for locating singularity prior in Section 3.1; (d) the mask in Section 3.2.

(a) Step 1: the singularities detected by canny in noisy barbara

(b) Step 2: the dilated singularities

(c) Step 3: the downsampled dilated singularity prior

(d) The mask composed by LL₁ and singularity prior