Untitled1.m和Untitled2.m文件是利用imfilt和fspecial函数对图像作锐化处理。 Untitled3.m是利用edge函数对图像进行锐化处理。- hua.m file is the picture "Untitled1.m and Untitled2.m file using imfilt and fspecial functions for image sharpening. Untitled3.m is the use of edge function