Move cv::Mat out of core.hpp

samples/cpp/tutorial_code/objectDetection/objectDetection2.cpp

@@ -6,6 +6,7 @@
 #include "opencv2/objdetect/objdetect.hpp"
 #include "opencv2/highgui/highgui.hpp"
 #include "opencv2/imgproc/imgproc.hpp"
+#include "opencv2/core/utility.hpp"
 
 #include <iostream>
 #include <stdio.h>
@@ -43,7 +44,7 @@ int main( void )
   {
     for(;;)
     {
-      frame = cvQueryFrame( capture );
+      frame = cv::cvarrToMat(cvQueryFrame( capture ));
 
       //-- 3. Apply the classifier to the frame
       if( !frame.empty() )