Efficient Algorithm for Isotropic and Anisotropic Total Variation Deblurring and Denoising

Algorithm 3

Step 1: Decomposing the denoising model of ROF to three subproblems (16)–(18) using the split

   Bregman method.

Step 2: To get 𝑢 by solving (22) using the AMG method.

Step 3: To get 𝑑_𝑥,𝑑_𝑦, using the shrinkage operator (23).

Step 4: To directly discretize 𝑏_𝑥,𝑏_𝑦, using difference scheme.