Computer Science ›› 2016, Vol. 43 ›› Issue (Z6): 214-216.doi: 10.11896/j.issn.1002-137X.2016.6A.051

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Total Variance with High-order Coupling Term for Color Image Restoration

MA Hong-hua, HUANG Yong-lin and DING Yan-yan   

  • Online:2018-12-01 Published:2018-12-01

Abstract: A new total variance for color image restoration method was proposed.To overcome blocky effect produced by anisotropic diffusion of TV model,high-order term was added to TV model.In the process of color image restoration,multi-channel coupled mechanism was used to realize mutual constraints between different monochrome channels.The new model is able to preserve edges because of the characteristic of anisotropic diffusion.The experimental results show that the images processed by the proposed model have higher PSNR (Peak Signal to Noise Ratio) than these processed by other models,and the non-boundary region looks more natural.

Key words: Total variance,Fourth-order PDE,Anisotropic diffusion,Restoration of color image

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