计算机应用与软件2013，Vol.30Issue(3)：127-131,157,6.DOI:10.3969/j.issn.1000-386x.2013.03.034
频域滤波技术在图像复原中的应用研究
ON APPLYING FREQUENCY DOMAIN FILTERING TECHNOLOGY TO IMAGE RESTORATION
摘要
Abstract
We study the effects of image restoration using the technology of image restoration with different frequency domain filtering, make the improvement in regard to the problems of existing Lucy_Richardson frequency domain filtering image restoration algorithm, and propose a new image restoration method in which the image noise reduction and the image restoration are alternatively iterated. Then we implement the simulation experiments on the LR algorithm and the improved PLR algorithm respectively, through the experiments we verify that the improved PLR algorithm does not only improve the speed of image restoration operation, but also improves the quality of the image restoration. In this paper we objectively evaluate the quality of the restored images by combining PSNR objective evaluation method with HVS contrast method, the integrated use of the two methods overcomes the defects of inconsistency between the results derived from traditionally used PSNR evaluation method and the results from human eyes observation. Evaluation results indicate that the improved PLR algorithm outperforms the LR algorithm in image restoration qualities under the condition of same iteration times, and can eliminate the ringing effect caused by image restoration.关键词
频域滤波/图像复原/PLR算法/峰值信噪比/HVS对比度Key words
Frequency domain filtering / Image restoration/ PLR algorithm/ PSNR/ HVS contrast分类
信息技术与安全科学引用本文复制引用
沈利华..频域滤波技术在图像复原中的应用研究[J].计算机应用与软件,2013,30(3):127-131,157,6.基金项目
浙江省供销社2011年度科学研究项目(11SS88). （11SS88）
