Impulse noise removal by a global-local noise detector and adaptive median filter

被引：42
|
作者：
Yuan, SQ [1 ]
Tan, YH
机构：
[1] Shanghai Jiao Tong Univ, Dept Automat, Shanghai 200030, Peoples R China
[2] Guilin Univ Elect Technol, Lab Intelligent Control, Guangxi 541004, Peoples R China
来源：
SIGNAL PROCESSING | 2006年 / 86卷 / 08期
关键词：
noise detection; impulse noise; adaptive median filter;
D O I：
10.1016/j.sigpro.2006.01.009
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：
Noise detection-based median filters have been widely adopted to reduce impulse noise. However, the number of misclassified pixels is obviously increased at high noise density. In order to overcome this drawback, a global-local noise detector is proposed in this paper. Based on the noise detection, an adaptive median algorithm is presented. Simulation results show that the new filter can effectively reduce impulse noise and preserve more details of original images. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2123 / 2128
页数：6
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