Multi-channel Weighted Nuclear Norm Minimization for Real Color Image Denoising

@article{Xu2017MultichannelWN,
  title={Multi-channel Weighted Nuclear Norm Minimization for Real Color Image Denoising},
  author={Jun Xu and Lei Zhang and David Dian Zhang and Xiangchu Feng},
  journal={2017 IEEE International Conference on Computer Vision (ICCV)},
  year={2017},
  pages={1105-1113}
}
Most of the existing denoising algorithms are developed for grayscale images. It is not trivial to extend them for color image denoising since the noise statistics in R, G, and B channels can be very different for real noisy images. In this paper, we propose a multi-channel (MC) optimization model for real color image denoising under the weighted nuclear norm minimization (WNNM) framework. We concatenate the RGB patches to make use of the channel redundancy, and introduce a weight matrix to… 

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