摘要
本文利用非线性各向异性扩散方程结合小波变换提出一种图象去噪的方法。首先对图像进行离散小波变换,然后对其各个分量分别用各向异性的方法实现去噪。实验结果表明,该方法能够较好的去除噪声的同时,很好的保留边缘信息。
Combining nonlinear anisotropy diffusion equation and wavelet transform,a method for image noise removal is presented in this paper. Firstly ,the image is decomposed by discrete wavelet transform. Secondly, every vector is denoised by means of anisotropic diffusion method. Comparison and experimental result show that the new method has high performance and good edge information .
出处
《数学理论与应用》
2007年第1期121-124,共4页
Mathematical Theory and Applications
关键词
小波变换
偏微分方程
图像去噪
wavelet transform partial differential equation noise removal
