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gistfile1.txt

	other = imread(path2, CV_LOAD_IMAGE_COLOR); cvtColor(other, other, CV_RGB2GRAY); other(ROI).copyTo(other_target);

    namedWindow( "reference", WINDOW_AUTOSIZE );
    //setMouseCallback("reference",on_mouse, NULL ); 	; 
    imshow( "reference", ref );

void on_mouse( int event, int x, int y, int d, void *ptr )
{
     if  ( event == EVENT_LBUTTONDOWN )
     {
          cout << "Left button of the mouse is clicked - position (" << x << ", " << y << ")" << endl;
     }
     else if  ( event == EVENT_RBUTTONDOWN )
     {
          cout << "Right button of the mouse is clicked - position (" << x << ", " << y << ")" << endl;
     }
     else if  ( event == EVENT_MBUTTONDOWN )
     {
          cout << "Middle button of the mouse is clicked - position (" << x << ", " << y << ")" << endl;
     }
     else if ( event == EVENT_MOUSEMOVE )
     {
          cout << "Mouse move over the window - position (" << x << ", " << y << ")" << endl;

     }
	}