Adaptive impulse detection using center-weighted median filters

被引：511

作者：

Chen, T ^{[1
]}

Wu, HR ^{[1
]}

机构：

[1] Monash Univ, Sch Comp Sci & Software Engn, Clayton, Vic 3168, Australia

来源：

IEEE SIGNAL PROCESSING LETTERS | 2001年 / 8卷 / 01期

关键词：

Image processing; impulse noise; median filters;

D O I：

10.1109/97.889633

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：

Previous median-based impulse detection strategies tend to work well for fixed-valued impulses but poorly for random-valued impulse noise, or vice verse. This letter devises a novel adaptive operator, which forms estimates based on the differences between the current pixel and the outputs of center-weighted median (CWM) filters with varied center weights. Extensive simulations show that the proposed scheme consistently works well in suppressing both types of impulses with different noise ratios.

引用

页码：1 / 3

页数：3

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