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广义自对偶形态学滤波器及其在图像去噪中的应用

LEI Tao, FAN Yang-yu,MAO Li

JOURNAL OF OPTOELECTRONICS·LASER(2011)

Cited 4|Views3
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Abstract
针对传统的自对偶形态学滤波器(SMF)是依赖于两个互为对偶的形态学滤波器,虽然能较好地保持图像的细节,但抑制噪声的效果较差.本文基干改进的形态学中值算子(MMO)和均值算子(MAO),提出了广义自对偶中值形态学滤波器(GSSMF)和广义自对偶均值形态学滤波器(GSAMF),分析并证明了两类滤波器均满足形态学滤波器的自对偶特性,分别适用于脉冲噪声和高斯噪声的去除.实验结果表明,GSMF在保持图像亮度不发生偏移的同时有效抑制了图像中的噪声,滤波后的图像具有较高的峰值信噪比(PSNR)和较小的均方根误差(RMSE).
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Key words
filters,self-dual,image-denoising
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