An Improved Algorithm for Impulse Noise by Median Filter

被引:8
|
作者
Zeng, Hanglin [1 ]
Liu, Yuan-zhong [1 ]
Fan, Yu-mei [1 ]
Tang, Xuefei [2 ]
机构
[1] SiChuan Univ Technol & Engn, Coll Auto & Electr Eng, Zigong 643000, Peoples R China
[2] Univ Elect Sci & Tech, Coll Comp, Chengdu, Peoples R China
关键词
Image processing; Median filter; Impulse noise; Edge detection;
D O I
10.1016/j.aasri.2012.06.014
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper proposes an algorithm to improve image processing for impulse noise by median filter. Isolate noise points in an image are detected by way of indiscernibility on rough sets. The improved algorithm enhances the detection capability of the single element of an image. Impulse noise is removed by a method of improvement of choice of threshold and filtering templates of median filter. Experiment simulation showed that the method of image enhancement proposed is superior to the traditional method in effectively improving image degradation and image clarity. (C) 2012 Published by Elsevier B. V. Selection and/or peer review under responsibility of American Applied Science Research Institute
引用
收藏
页码:68 / 73
页数:6
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