blending two images by Opencv

Question

I want to align two images of different sizes using Opencv, Indeed the function cvAddWeighted enables us to combine or blend two images of identical sizes which is not my case !

Answer 1

First, check Adding Two Images with Different Size.

Another way to do it would be to set the region of interested on the bigger image using the width/heigh of the smaller (cvSetImageROI() will do that), and then perform the blend with cvAddWeighted(). You'll find some source code to do that and here.