Circulant preconditioners for mean curvature-based image deblurring problem

The mean curvature-based image deblurring model is widely used to enhance the quality of the deblurred images. However, the discretization of the associated Euler–Lagrange equations produces a nonlinear ill-conditioned system which affects the convergence of the numerical algorithms such as Krylov s...

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Auteurs principaux: Shahbaz Ahmad, Faisal Fairag
Format: article
Langue:EN
Publié: SAGE Publishing 2021
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Accès en ligne:https://doaj.org/article/642d1acaa0224a70b20e9250c47a4433
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