一种有效的脉冲噪声滤波算法  

A New Impulsive Noise Removal Filtering Algorithm

作　　者：周锐锐[1] 毕笃彦[1] 毛柏鑫[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《空军工程大学学报（自然科学版）》2004年第6期44-46,50,共4页Journal of Air Force Engineering University(Natural Science Edition)

摘　　要：提出了一种新的图象脉冲噪声消除算法,该方法可以快速有效地去除图象中的脉冲噪声,并保留图象的细节。该算法主要通过利用象素点邻域的中值与最大、最小值信息,决定噪声象素的取值。对本算法与中值滤波算法进行了分析仿真,结果表明,本算法去除噪声与保留细节的效果好,对高强度的脉冲噪声也有比较好的滤波效果。A new filtering algorithm with the purpose of eliminating impulsive noise is presented. In order to keep the content of signals as much as possible when the noises are removed, the following approaches are developed in this paper. Noisy items are identified by inspection of their surrounding neighborhood, and afterwards their values are replaced with the most 'conservative' ones out of their neighbors' value. If a pixel value is the extremum (max. or min.) of its neighborhood, it is a noise pixel, or else it is a signal pixel. Experiment results show that the new algorithm is good in performance to keep the content of image and remove noise, especially in the case of strong noise.

关 键 词：滤波 脉冲噪声 去噪 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]