Template matching from a screenshot of a window

Question

What I\'ve done

I have a small template image which is meant to be used to find coordinates of matching subimages within a larger screenshot image. The screenshot

Answer 1

To expand on Balaji's very useful answer, make sure that all the Mats being passed to the function are of the same type with the .type() function. You can change src.create(height,width,CV_8UC4); to the same type as template (or vice versa) and the error should be gone. Here's another version of the solution.