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A Projected Gradient Method for a High-order Model in Image Restoration Problems |
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PP: 515-524 |
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Author(s) |
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Zhi-Feng Pang,
Baoli Shi,
Lihong Huang,
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Abstract |
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| Based on the augmented Lagrangian strategy, we propose a projected gradient method for solving the high-order model in
image restoration problems. Based on the Berm`udez and Moreno (BM) algorithm, the convergence of the proposed method is proved.
We also give the relationship that the semi-implicit gradient descent method can be deduced from the projected gradient method. Some
numerical experiments are arranged to demonstrate the efficiency of the proposed method for restoring the gray-level and color images. |
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