text: #include <opencv2/core/core.hpp>
  #include <opencv2/imgproc/imgproc.hpp>
  #include <opencv2/highgui/highgui.hpp>
  using namespace cv;
  
  int main(int argc, char *argv[])
  {
      Mat img = imread("arnold_schwarzenegger.jpg", CV_LOAD_IMAGE_COLOR);
      if(img.empty()) 
         return -1;
      namedWindow("arnold_schwarzenegger", CV_WINDOW_AUTOSIZE );
      imshow("arnold_schwarzenegger", img);
      waitKey(0);
      return 0;
  }
  
  
  
  