Introduction - If you have any usage issues, please Google them yourself
		 
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 functions for image sharpening. Spend bmp "is divided into eight located in the plane, and then convert it to binary image 
Exchange.m function changes the picture using imadjust gray.
histeq00.m function using histeq equalization picture.