摘要
文章在已有极值中值滤波算法的基础上,提出一种改进的滤波算法.该算法对于不同密度的椒盐噪声采用了不同的滤波方法.在噪声密度较低时,采用有效信号的均值滤波;在噪声密度较大时,采用递归方式进行滤波.经过大量实验证明,该算法在滤除椒盐噪声能力和细节保护能力方面均有较大提高.
Based on the extreme median filter,an improved image filter algorithm is proposed.Different algorithms are used for different noise densities.If the noise density is low,the mean filter with effective signal is used;if the noise density is high,the recursive window filter is used.Lots of experiments show that the results of salt & pepper noise filtering and detail-preserving are greatly improved.
出处
《南京晓庄学院学报》
2008年第6期62-65,共4页
Journal of Nanjing Xiaozhuang University
关键词
椒盐噪声
极值检测
均值滤波
递归
salt & pepper noise
extreme detect
mean filter
recursive
