Wavelet inpainting by fractional order total variation
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Image inpainting in the wavelet domain refers to the recovery of an image from incomplete wavelet coefficients. In this paper, we propose a wavelet inpainting model by using fractional order total variation regularization approach. Moreover, we use a simple but very efficient primal–dual algorithm to calculate the optimal solution. In the light of saddle-point theory, the convergence of new algorithm is guaranteed. Experimental results are presented to show performance of the proposed algorithm.
KeywordsFractional order derivative Total variation Primal–dual Wavelet inpainting
The authors would like to thank the associate editor and reviewers for helpful comments that greatly improved the paper. This work was supported by the National Natural Science Foundation of China (Nos. 61301243, 61201455), Natural Science Foundation of Shandong Province of China (Nos. ZR2013FQ007, ZR2014AQ014), and the Fundamental Research Funds for the Central Universities (No. 15CX02060A) the China Scholarship Council.
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