Help me find Waldo (pattern recognition)

Please help me find Waldo,
It suppose to be simple pattern recognition technique I saw in opencv.

mayebe the convolve have some issues ?
I`m missing anything in the method?
docs.opencv.org/2.4/doc/tutoria … ching.html
NewProject.toe (4.77 MB)

Looks like the convolveTOP will take a max matrix of 31x31 Barak. You could always roll your own in a GLSL shader. I have an arbitrary size convolve shader kicking around I can send you if needed.

cheers
Keith