An Improved Optimal Proximal Gradient Algorithm for Non-Blind Image Deblurring

Qingsong Wang, Shengze Xu, Xiaojiao Tong, Tieyong Zeng
2/11/2025
cs.CVmath.OC

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Abstract

Image deblurring remains a central research area within image processing, critical for its role in enhancing image quality and facilitating clearer visual representations across diverse applications. This paper tackles the optimization problem of image deblurring, assuming a known blurring kernel. We introduce an improved optimal proximal gradient algorithm (IOptISTA), which builds upon the optimal gradient method and a weighting matrix, to efficiently address the non-blind image deblurring problem. Based on two regularization cases, namely the $l_1$ norm and total variation norm, we perform numerical experiments to assess the performance of our proposed algorithm. The results indicate that our algorithm yields enhanced PSNR and SSIM values, as well as a reduced tolerance, compared to existing methods.

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Cite this paper

@article{wang2025improved,
  title  = {An Improved Optimal Proximal Gradient Algorithm for Non-Blind Image Deblurring},
  author = {Qingsong Wang and Shengze Xu and Xiaojiao Tong and Tieyong Zeng},
  year   = {2025},
  eprint = {2502.07602},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2502.07602v1}
}

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