Hi All! I am very beginner i would like to use a full code which is based on SURF_homography.cpp in the tutorial but i would like to use it in this way: I want to pick some (3 or 4) points on an image and the program should find the homography plain between the following images based on the picked points. It would be good if I can set the values of the transformation matrix. I have to analyse the following images by manipulating the values. Can anybody help where I find the source code like this?