代码示例

      #include <string> 
      #include <iostream> 
      #include <algorithm> 
      #include <iterator>
      #include <stdio.h>
      #include <string.h>
      #include <ctype.h>
      #include "opencv2/core/core.hpp"
      #include"opencv2/highgui/highgui.hpp"
      #include "opencv2/imgproc/imgproc.hpp"
      #include "opencv2/objdetect/objdetect.hpp"
      #include <vector>
      #include <stdio.h>
      using namespace cv;
      using namespace std;
      //int main(int argc, char** argv){
      // Mat img;
      // vector<Rect> found, foundRect;
      //
      // //img = imread(argv[1]);
      //if (argc != 2 || !img.data){
      // printf("没有图片\n");
      // return -1;
      //}
      int main()
      {
      	Mat img;
      vector<Rect> found, foundRect;
      	img = imread("test.png");
      	imshow("【原图】", img);
     	cout << "读进去图片了" << endl;
     	if (!img.data){
     		printf("没有图片\n");
     		return -1;
      	}
     	cout << "设置特征" << endl;
      	HOGDescriptor defaultHog;
      	defaultHog.setSVMDetector(HOGDescriptor::getDefaultPeopleDetector());
     	//进行检测
     	cout << "进行检验" << endl;
      	defaultHog.detectMultiScale(img, found);
     	//遍历found寻找没有被嵌套的长方形
     	for (int i = 0; i < found.size(); i++){
      		Rect r = found[i];
     		int j = 0;
     		for (; j < found.size(); j++){
     			//如果时嵌套的就推出循环
     			if (j != i && (r & found[j]) == r)
      break;
      		}
     		if (j == found.size()){
      			foundRect.push_back(r);
      		}
     		cout << "寻找嵌套： " <<i<< endl;
      	}
     	//画长方形，圈出行人
     	for (int i = 0; i < foundRect.size(); i++){
      		Rect r = foundRect[i];
      		rectangle(img, r.tl(), r.br(), Scalar(0, 0, 255), 3);
     		cout << "画出方框： " << i << endl;
      	}
     	cout << "显示结果"<< endl;
      	namedWindow("检测行人", CV_WINDOW_AUTOSIZE);
      	imshow("检测行人", img);
      	waitKey(0);
     	return 0;
      }
  
 

文章来源: kings.blog.csdn.net，作者：人工智能博士，版权归原作者所有，如需转载，请联系作者。

原文链接：kings.blog.csdn.net/article/details/99758018