| 小波阈值法在图像去噪中的应用 |
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| 引用本文： | 黄文丽,裘咏霄,陈茂源,杜志顺.小波阈值法在图像去噪中的应用[J].电子技术,2010,47(4):1-3. |
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| 作者姓名： | 黄文丽 裘咏霄 陈茂源 杜志顺 |
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| 作者单位： | 中国地质大学(武汉)机械与电子信息学院 |
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| 摘 要： | 介绍了小波去噪的基本理论以及小波阈值法去噪的原理。小波阈值法去噪的关键是阈值的设置和阈值函数的选择。本文归纳了阈值的设置方法和阈值函数的选择方法,并针对图像去噪进行了仿真实验,将一幅混有不同水平高斯白噪声的图像分别进行软、硬阈值函数去噪。实验得出软阈值函数的去噪效果比硬阈值函数的去噪效果好这个结论。
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| 关 键 词： | 小波阈值 阈值函数 图像去噪 |
Application of Wavelet Thresholding Method in Image De-noising |
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| Huang Wenli Qiu Yongxiao Chen Maoyuan Du Zhishun.Application of Wavelet Thresholding Method in Image De-noising[J].Electronic Technology,2010,47(4):1-3. |
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| Authors: | Huang Wenli Qiu Yongxiao Chen Maoyuan Du Zhishun |
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| Affiliation: | Faculty of Mechanical & Electronic Information;China University of Geosciences |
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| Abstract: | This paper introduces the basic theory of wavelet de-noising and the principles of wavelet thresholding denoising. The key for wavelet thresholding de-noising is to set the threshold and choose the thresholding function. This article summarizes the threshold setting methods and the choice methods of the thresholding function, and conducts a simulation on image de-noising in which an image mixed with different levels of Gaussian white noise is de-noised by soft and hard thresholding function,respectively. Th... |
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| Keywords: | wavelet threshold thresholding function image de-noising |
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