| 一种基于噪声点检测的自适应中值滤波方法 |
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| 引用本文： | 高克芳,郭建钢.一种基于噪声点检测的自适应中值滤波方法[J].福建农林大学学报(自然科学版),2009,38(3). |
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| 作者姓名： | 高克芳 郭建钢 |
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| 作者单位： | 福建农林大学机电工程学院,福建,福州,350002 |
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| 摘 要： | 针对中值滤波在图像去噪时会造成图像细节丢失的问题,提出了一种新的基于噪声点检测的自适应中值滤波法.该方法对噪声点采用两级判断的方法:首先根据椒盐噪声的特点将图像像素点分为可疑噪声和信号两类;对于可疑噪声点,根据噪声与细节在图像中的表现,将可疑噪声分为噪声和边缘细节;然后采用不同的中值滤波窗口对噪声点进行滤波,对于两次判断得到的信号和边缘细节不进行处理以保持图像的细节.测试结果表明,与常用的中值滤波法相比,该方法不仅具有较好的去噪特性,还具有较强的细节保护能力.
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| 关 键 词： | 图像处理 中值滤波 自适应 噪声检测 |
An adaptive median filtering algorithm based on noise detection |
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| GAO Ke-fang,GUO Jian-gang.An adaptive median filtering algorithm based on noise detection[J].Journal of Fujian Agricultural and Forestry University,2009,38(3). |
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| Authors: | GAO Ke-fang GUO Jian-gang |
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| Institution: | GAO Ke-fang,GUO Jian-gang(College of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China) |
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| Abstract: | To overcome the drawback that median filtering algorithm often get rid of fringe details of image while filtering noise,the adaptive median filtering algorithm based on noise detection is proposed in this paper.The algorithm applys the two stages method to detect noise.First,the algorithm determines a pixel point as signal pixel or possible noise pixel according to the characteristic of salt and pepper noise.Second,according to the difference between salt and pepper noise and fringe details,each possible no... |
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| Keywords: | image processing median filtering adaptive noise detection |
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