I have opencv2.4 on the PI. I did #include "opencv2/core/core.hpp" and it worked. The angle brackets were part of the problem as well. Using quotation solved the problem as I compared to an early code.
I have opencv2.4 on the PI. I did #include "opencv2/core/core.hpp" and it worked. The angle brackets were part of the problem as well. Using quotation solved the problem as I compared to an early code.code. berak