高斯低通滤波器实现图像去噪，通过去除高频分量来降低图像噪声(Image denoising by Gauss low pass filter and reduction of image noise by removing high frequency components)

利用MATLAB实现了图像的非局部均值去噪算法，效果明显。(The non local means denoising algorithm of image is implemented by MATLAB, and the effect is obvious.)