| 基于小波综合阈值函数的图像去噪 |
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| 引用本文： | 缑新科,郭天圣,王明杰,范元钊.基于小波综合阈值函数的图像去噪[J].甘肃科学学报,2010,22(1):114-117. |
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| 作者姓名： | 缑新科 郭天圣 王明杰 范元钊 |
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| 作者单位： | 1. 兰州理工大学,电气与信息工程学院,甘肃,兰州,730050
2. 兰州理工大学,电气与信息工程学院,甘肃,兰州,730050;石河子大学,机电学院,新疆,石河子,832000 |
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| 摘 要： | 在小波硬阈值函数和软阈值函数的基础上,提出一种综合阈值函数.这个函数综合了硬阈值函数和软阈值函数的特征,具有良好的数学特征.选择合适的参数,可以适应不同的图像.采用局部阈值规则选择阈值,通过仿真实验,验证了综合阈值函数对去除高斯噪声的有效性.
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| 关 键 词： | 图像 小波变换 闽值函数 局部闽值规则 |
Image De-noising Based on Integrated Threshold Function of Wavelet Transform |
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| GOU Xin-ke,GUO Tian-sheng,WANG Ming-jie,FAN Yuan-zhao.Image De-noising Based on Integrated Threshold Function of Wavelet Transform[J].Journal of Gansu Sciences,2010,22(1):114-117. |
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| Authors: | GOU Xin-ke GUO Tian-sheng WANG Ming-jie FAN Yuan-zhao |
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| Institution: | 1.College of Electrical and Information Engineering;Lanzhou University of Science and Technology;Lanzhou 730050;China;2.College of Mechanical and Electronic;Shihezi University;Shihezi 832000;China |
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| Abstract: | In order to overcome the shortcomings of hard and soft threshold functions of wavelet,a new threshold function is presented.This function combines hard threshold function and soft threshold function,which has good mathematical properties.It can be used in various cases of denoising by selecting suitable parameters.The emulation results and comparative studies show this method has the effectiveness of removing Gaussian noises. |
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| Keywords: | image wavelet transform threshold function local threshold rule |
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