Overlapping Domain Decomposition Method with Cascadic Multigrid for Image Restoration

In the process of image restoration, it is usually necessary to solve large-scale inverse problems, where computational cost very high for large or high-resolution images. The domain decomposition method one most effective algorithms which can effectively decrease cost. cascadic multigrid has a good effect on linear model restoration and obtain quality restored this paper, overlapping (DDM) with (CMG) DDM new extrapolation (NECMG) are presented problems denoising deblurring. We first divide problem into some independent subproblems. Then, each subproblem solved independently by CMG NECMG edge-preserving operator. Numerical experiments show that effective.