opencv 头文件!

#include <iostream>
#include <string>
#include <vector>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/features2d/features2d.hpp>    
#include <opencv2/xfeatures2d.hpp>
#include <opencv2/xfeatures2d/nonfree.hpp>  
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/opencv.hpp>

#pragma comment(lib, "opencv_core231d.lib")

#pragma comment(lib, "opencv_highgui231d.lib")

#pragma comment(lib, "opencv_imgproc231d.lib")