改进的中值滤波在图像去噪中的应用  

Application of Improved Median Filtering in the Image Denoising

作　　者：陈晓[1,2] 唐诗华[1,2] 

机构地区：[1]桂林理工大学测绘地理信息学院,广西桂林541004 [2]广西空间信息与测绘重点实验室,广西桂林541004

出　　处：《地理空间信息》2015年第6期77-78,13,共2页Geospatial Information

基　　金：国家自然科学基金资助项目(41064001);广西省自然科学基金资助项目(2012GXNSFAA053183);广西研究生教育创新计划资助项目(YCSZ2013077);广西空间信息与测绘重点实验室资助项目(1103108-06)

摘　　要：阐述了中值滤波、软阀值法的去噪原理和优缺点,并用Matlab实现其算法。这2种方法在去噪时,会造成图像的部分细节丢失、边缘模糊等现象,针对这些问题,提出一种改进的中值滤波法。实验表明,改进后的中值滤波法具有更好的去噪效果。This paper explained the denoising principle of median filtering and soft threshold, analyzed their advantages and disadvantages, and used Matlab to realize their algorithms. According to the problems of image details missing, edge blurring when the two methods were denoising, the paper put forward an improving method for median filtering. The experimental result shows that the improving method has a better effect in denoising.

关 键 词：MATLAB 原理 算法 中值滤波 

分 类 号：P237.3[天文地球—摄影测量与遥感]