| 用于彩色图像复原的带有高阶耦合项的TV模型 |
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| 引用本文： | 马洪华,黄永林,丁岩岩.用于彩色图像复原的带有高阶耦合项的TV模型[J].计算机科学,2016,43(Z6):214-216. |
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| 作者姓名： | 马洪华 黄永林 丁岩岩 |
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| 作者单位： | 湖北工程学院物理与电子信息工程学院 孝感432000,湖北工程学院物理与电子信息工程学院 孝感432000,湖北工程学院新技术学院 孝感432000 |
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| 基金项目： | 本文受湖北省自然科学基金项目(2015CFC770)资助 |
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| 摘 要： | 提出了一种改进的TV(Total Variance)彩色图像复原方法。为消除TV模型的各向异性扩散导致的块效应,采用在TV模型的基础上耦合高阶项的新模型；并将这个新的模型推广到彩色图像,利用多通道的耦合机制实现各单色通道图像复原过程的相互制约。新模型保持了各向异性扩散的特性,图像的边缘得到了保持。实验结果证明, 与其它模型的复原 彩色图像相比,新模型复原的图像的峰值信噪比(PSNR)有了更大的提高,图像的非边缘区看上去更加平滑自然。
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| 关 键 词： | 整体方差 四阶偏微分 各向异性扩散 彩色图像复原 |
Total Variance with High-order Coupling Term for Color Image Restoration |
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| MA Hong-hu,HUANG Yong-lin and DING Yan-yan.Total Variance with High-order Coupling Term for Color Image Restoration[J].Computer Science,2016,43(Z6):214-216. |
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| Authors: | MA Hong-hu HUANG Yong-lin and DING Yan-yan |
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| Affiliation: | School of Physics and Electronic-information Engineering,Hubei Engineering University,Xiaogan 432000,China,School of Physics and Electronic-information Engineering,Hubei Engineering University,Xiaogan 432000,China and College of Technology,Hubei Engineering University,Xiaogan 432000,China |
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| 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. |
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| Keywords: | Total variance Fourth-order PDE Anisotropic diffusion Restoration of color image |
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