version:

n_points:

{

}

#include <iostream>

#include "opencv2/highgui/highgui.hpp"

#include "opencv2/imgproc/imgproc.hpp"

#include <stdio.h>

#include <stdlib.h>

#include <vector>

#include <fstream>

#include<iostream>

#include <sstream>

#include <vector>

#include <string>

#include <fstream>

#include <iostream>

#ifdef __APPLE__

#include <sys/uio.h>

#else

#include <sys/io.h>

#endif

using namespace cv;

using namespace std;

vector<Point2f> readpts(){

    ifstream myfile("1.pts");

    string temp;

    if (!myfile.is_open())

    {

        cout << "未成功打开文件" << endl;

    }

    vector<Point2f> vp2f;

    int index=;

    while(getline(myfile,temp)) {

         if((index>=)&&(index<)){

             Point2f p1;

             int a[]={};

             istringstream iss;//istringstream提供读 string 的功能

             iss.str(temp);//将 string 类型的 test 复制给 iss，返回 void

             string s;

             int i=;

             while (iss >> s){

                  int x = stoi(s);

//                  cout << x << endl;//按空格读取string

                 a[i]=x;

                 i++;

             }

             p1.x=a[];

             p1.y=a[];

             vp2f.push_back(p1);

         }

        index++;

    }

    return vp2f;

}

int main(){

    Mat img=imread("1.jpg");

  vector<Point2f> landmark= readpts();

    for (int idx = ; idx < landmark.size(); idx++) {

        cv::circle(img, landmark[idx], , cv::Scalar(, , ), -);

    }

    imshow("img",img);

    cvWaitKey();

    return ;

}