Introduction - If you have any usage issues, please Google them yourself
1.5 1
In_img = imread (' long.jpg ');
[posr, posc] = Harris1 (in_img, 0.04);
1.5-2 runs directly
1.5 3
Img = imread (' door.jpg ');
Points = harrislaplace (img);
1.5-4, 1.5-5 is a sub-function of 1.5-3