An Efficient Procedure for Removing Random-Valued Impulse Noise in Images

被引：36

作者：

Yu, Hancheng ^{[1
,2
]}

Zhao, Li ^{[1
]}

Wang, Haixian ^{[3
]}

机构：

[1] Southeast Univ, Sch Informat Sci & Engn, Nanjing 210096, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Sch Informat Sci & Technol, Nanjing 210016, Peoples R China

[3] Southeast Univ, Key Lab Child Dev & Learning Sci, Minist Educ, Nanjing 210096, Peoples R China

来源：

IEEE SIGNAL PROCESSING LETTERS | 2008年 / 15卷

基金：

中国国家自然科学基金;

关键词：

Image restoration; noise detector; random-valued impulse noise; rank-ordered relative differences statistic;

D O I：

10.1109/LSP.2008.2005051

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, we present an efficient algorithm for the removal of random-valued impulse noise from a corrupted image by using a reference image. The proposed method uses a statistic of rank-ordered relative differences to identify pixels which are likely to be corrupted by impulse noise. Once a noisy pixel is identified, its value is restored by a simple weighted mean filter. Simulation results indicate that our algorithm provides a significant improvement over many other existing techniques.

引用

页码：922 / 925

页数：4

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