#include <iostream>

#include <opencv/cv.h>

#include <opencv/highgui.h>

int main()

{

  double d = 343.904804;

  char buf[128];

  sprintf(buf, "%.6lf", d);

  std::cout << buf << std::endl;

  cv::namedWindow( "win" );

  sprintf(buf, "%.6lf", d);

  std::cout << buf << std::endl;

  return 0;

}