cv::Mat capturedFrame;
int newData[600][800];
std::cout<<"Debug1 " << std::endl;
memcpy((char*)newData, (char*)capturedFrame.data, 600*800*sizeof(int) );
std::cout<<"Debug2 " << std::endl;
mycode.setData ( newData );
std::cout<<"Debug3 " << std::endl;

char data [600][800];
void mycode::setData ( char newData[600][800] )
{
  for ( int m=0; m < 600; m ++ )
  {
      for ( int n = 0; n < 800; n ++ )
      {
          data[i][j] = newData[i][j];
      }
  }
}

mycode.setData ( newData );

int newData[600][800];

mycode.setData ( newData );

memcpy((int*)newData, (int*)capturedFrame.data, 600*800*sizeof(int) );