为了方便，在m文件中将图像转化成数据矩阵了，不需要额外的图片了，如果想改变图像，则可以将数据删除，改成图片即可。





此GUI功能是：通过滚动条改变截断半径，同步在文本框中显示截断半径大小（也可以直接在文本框中输入所要的截断半径），按Begin,观察图像的低通滤波效果。（截断半径越小，得到的频率越少，图像越模糊，失真越严重）。-In order to facilitate, in the m document images into data matrix, and no additional pictures, if want to change the image, you can delete the data, picture can be changed. This GUI functions are: the adoption of the scroll bar to change the cut-off radius, simultaneously in the text box shows the size of cut-off radius (you can also directly in the text box to be cut-off radius), according to Begin, to observe the image low-pass filtering effects. (Cut-off radius of the smaller, the frequency has been less the more blurred images, the more serious distortion).