基于小波变换的图像降噪方法的研究

Image Denoising Based on Wavelet

在介绍了图像噪声和小波阈值化降噪的原理后,根据小波系数不同的特点选取阈值,运用MATLAB中的小波工具箱,对一个含噪图像进行阈值降噪。实验结果表明,此方法可以有效地降低噪声,并较好地保留图像的细节。

The article introduce the noise theory and the method of image denoising based on different wavelet coefficient to decide its threshold,denoising a image uses the wavelet toolbox of Matlab. Experiment shows that this method of image denoising based on wavelet is valid and viable, and can reserve the detail of image better.