Alternating Krylov subspace image restoration methods

  title={Alternating Krylov subspace image restoration methods},
  author={J. O. Abad and Serena Morigi and Lothar Reichel and Fiorella Sgallari},
  journal={J. Computational Applied Mathematics},
Alternating methods for image deblurring and denoising have recently received considerable attention. The simplest of these methods are two-way methods that restore contaminated images by alternating between deblurring and denoising. This paper describes Krylov subspace-based two-way alternating iterative methods that allow the application of regularization operators different from the identity in both the deblurring and the denoising steps. Numerical examples show that this can improve the… CONTINUE READING
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