| 一种改进的中值滤波算法及其应用 |
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| 引用本文： | 钟涛,张建国,左俊彦.一种改进的中值滤波算法及其应用[J].云南大学学报(自然科学版),2015,37(4):505-510. |
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| 作者姓名： | 钟涛 张建国 左俊彦 |
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| 作者单位： | 1.上海应用技术学院 机械工程学院,上海 201418 |
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| 摘 要： | 为有效解决传统中值滤波算法在保护图像细节方面存在的缺陷,提出了一种改进的中值滤波算法.该算法对滤波窗口中像素进行了分块处理,再对处理的数值取中值.通过对图像边缘像素进行横向和纵向扩展,改善了图像的边缘信息.将该算法应用到医学图像中,并将实验结果与其他算法进行了比较,证明了本文算法的有效性,在去除噪声的同时,更好地保护了图像的细节.
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| 关 键 词： | 中值滤波 图像去噪 边缘信息 |
| 收稿时间： | 2014-08-25 |
An improvement median filter algorithm and its application |
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| ZHONG Tao,ZHANG Jian-guo,ZUO Jun-yan.An improvement median filter algorithm and its application[J].Journal of Yunnan University(Natural Sciences),2015,37(4):505-510. |
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| Authors: | ZHONG Tao ZHANG Jian-guo ZUO Jun-yan |
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| Institution: | 1.School of Mechanical Engineering,Shanghai Institute of Technology,Shanghai 201418,China |
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| Abstract: | To solve the disadvantage in protecting image details of the traditional median filtering effectively,an improved median filtering algorithm is proposed.The pixel in filter window is divided into several blocks,the treated values are selected as medium values.The image edge pixels are expanded to horizontal and vertical,which improve the image edge information.This algorithm is applied to the medical image,and the experimental results are compared with other algorithm,which proves the effectiveness of this algorithm,the noise is removed and the detail of the image is protected at the same time. |
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| Keywords: | median filter removing noise edge information |
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