| 基于邻域均值的去椒盐噪声算法 |
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| 引用本文： | 何一鸣,张刚兵,钱显毅. 基于邻域均值的去椒盐噪声算法[J]. 南京理工大学学报(自然科学版), 2011, 35(6) |
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| 作者姓名： | 何一鸣 张刚兵 钱显毅 |
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| 作者单位： | 常州工学院电子信息与电气工程学院,江苏常州,213002 |
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| 基金项目： | 江苏省高校自然科学基金(10KJD480003) |
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| 摘 要： | 为了改善图像效果,利用图像邻域相关性提出了一种适用于椒盐噪声的图像去噪滤波算法.首先利用最大最小法则检测出被椒盐噪声污染的像素点,然后将被污染像素点邻域中的8个像素点按距离远近分为两类,最后利用近距离邻域中未被污染像素灰度值的均值重构图像灰度值.当近距离邻域像素全部被污染时,以远距离邻域中未被污染像素灰度值的均值代替该点的灰度值.仿真结果表明,该算法具有较大的峰值信噪比,能有效地抑制椒盐噪声并保护图像的细节.
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| 关 键 词： | 椒盐噪声 邻域均值 图像去噪 滤波 最大最小法则 峰值信噪比 |
Salt and Pepper Noise Removal Algorithm Based on Neighbourhood Mean |
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| HE Yi-ming , ZHANG Gang-bing , QIAN Xian-yi. Salt and Pepper Noise Removal Algorithm Based on Neighbourhood Mean[J]. Journal of Nanjing University of Science and Technology(Nature Science), 2011, 35(6) |
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| Authors: | HE Yi-ming ZHANG Gang-bing QIAN Xian-yi |
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| Affiliation: | HE Yi-ming,ZHANG Gang-bing,QIAN Xian-yi(School of Electronic Information & Electric Engineering,Changzhou Institute of Technology,Changzhou 213002,China) |
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| Abstract: | To improve the image effect,a filter algorithm for image noise removal suitable for salt and pepper noise is proposed based on the correlation of the neighbourhood.The pixels contaminated by salt and pepper noise are detected by using the maximum-minimum principle.Eight pixels near the contaminated one are divided into two classes according to their distances.The gray value of contaminated pixel is reconstructed by the mean of those uncontaminated pixels with near distance.The gray value of contaminated pix... |
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| Keywords: | salt and pepper noise neighbourhood mean image noise removal filter maximum-minimum principle peak signal-to-noise ratio |
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