| 用于图像处理的自适应中值滤波 |
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| 引用本文： | 张旭明,徐滨士,董世运.用于图像处理的自适应中值滤波[J].计算机辅助设计与图形学学报,2005,17(2):295-299. |
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| 作者姓名： | 张旭明 徐滨士 董世运 |
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| 作者单位： | 上海交通大学材料科学与工程学院,上海,200030;装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072;装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072 |
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| 基金项目： | 国家自然科学基金重点项目 (5 0 2 3 5 0 3 0 )，总装备部“十五”预研项 |
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| 摘 要： | 针对标准中值滤波方法存在的不足，提出自适应中值滤波方法．该方法通过噪声检测确定子图像中的脉冲噪声点及噪声干扰大小，根据噪声干扰程度选择滤波窗口的尺寸，并采用改进的中值滤波方法对检测出的噪声点进行滤波．计算机模拟实验结果表明：自适应中值滤波能在有效地去除噪声的同时，较好地保护图像细节，较标准中值滤波具有更优良的滤波性能，其滤波速度也较中值滤波具有明显优势．
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| 关 键 词： | 自适应中值滤波 脉冲噪声 噪声检测 |
Adaptive Median Filtering for Image Processing |
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| Zhang Xuming,Xu Binshi,Dong Shiyun.Adaptive Median Filtering for Image Processing[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(2):295-299. |
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| Authors: | Zhang Xuming Xu Binshi Dong Shiyun |
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| Affiliation: | Zhang Xuming 1,2) Xu Binshi 2) Dong Shiyun 2) 1) |
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| Abstract: | To overcome the drawbacks of the standard median filter, the adaptive median filter is proposed in this paper. In the algorithm, noise detection is utilized to determine impulse noise and the degree of noise interference in sub-images. Based on the degree of noise interference, window size could be selected, and the noise found in sub-images is removed by means of improved median filter. Results of computer simulation experiments on the adaptive median filter show that the method can suppress noise very effectively while preserving fine details very well and has better filtering performance than the standard median filter. It also shows a great advantage over the standard one in filtering speed. |
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| Keywords: | adaptive median filter impulse noise noise detection |
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