Matching template images with masks using OpenCV and C++

Question

How can I match a masked image using matchTemplate() in OpenCV with C++?

This is my masked template image:

And this is my source image:

Answer 1

Look at opencv example . You gotta call the matchTemplate function:

matchTemplate( img, templ, result, match_method );

Answer 2

matchTemplate 's fifth argument is a mask array which you can use for this purpose. In your case, you'll want a binary mask. That is, a Mat with:

• depth CV_8U , and
• dimensions equal to your template image, and
• the pixels you want to ignore from your template set to 0, and
• the pixels you want to be used set to a non-zero value (typically 1)