本matlab程序可生成低通滤波器，数字图像处理-The matlab program can generate low-pass filter, digital image processing

使用低通滤波器，观察原始图像与以图形形式显示的高斯低通滤波器的差别，显示频谱和处理后的图像！-Using low-pass filter to observe the original image and displayed in graphical form of the difference between the Gaussian low pass filter, display the spectrum and the processed image!