基于方向的自适应多级中值滤波

被引:18
作者
万洪林
彭玉华
郭锐
机构
[1] 山东大学信息科学与工程学院
关键词
多级中值滤波; 去噪; 线特征; 非线性滤波;
D O I
暂无
中图分类号
TN713 [滤波技术、滤波器];
学科分类号
080902 ;
摘要
针对传统多级中值滤波在所能保护的线特征方向上的不足,提出了一种基于方向的自适应多级中值滤波方法。该方法通过对小窗口内线特征走向的判断在大的窗口中选择不同的多级中值滤波方式,使滤波子窗口方向与线特征走向相一致。实验证明与传统的多级中值滤波相比,该方法能够在各个方向上更好地保留图像地线特征,同时与传统的多级中值滤波一样能够有效抑制噪声。
引用
收藏
页码:119 / 123
页数:5
相关论文
共 10 条
[1]  
Center weighted median filters and their applica-tion to image enhancement. KO S J,LEE Y H. IEEE Transactions on Circuits and Systems . 1991
[2]  
Adaptive multistage median filter. WANG X. IEEE Transactions on Image Processing . 1992
[3]  
Optimal weighted median filter under structural constrains. YANG R,LIN T,GABBOUJ M,ASTOLA J,NEUVO Y. IEEE Trans Sig-nal Process . 1995
[4]  
Generalized multistage median filters. WANG X. IEEE Transactions on Image Processing . 1992
[5]  
Detail preserving ranked-order based filters for image processing. ARCE G R,FOSTER R E. IEEE Transactions on Applied Superconductivity . 1989
[6]  
Tri-state median filter for image denoising. CHEN T,MA K K,CHEN L H. IEEE Transactions on Image Processing . 1999
[7]  
L-M-S filters for image restora-tion applications. PETRESCU D,TABUS I,GABBOUJ M. IEEE Transactions on Image Processing . 1999
[8]  
Noise adaptive soft-switching median filter. ENG H L,MA K K. IEEE Transactions on Image Processing . 2001
[9]  
Weighted median filters:a tutorial. YIN L,YANG R,GABBOUJM,NEUVO Y. IEEE Transactions on Circuits and Systems . 1996
[10]  
Fast impulsive noise removal. WMDYGA P S. IEEE Transactions on Image Processing . 2001