opencv 人脸识别 眼睛识别

版权声明：https://blog.csdn.net/CAIYUNFREEDOM https://blog.csdn.net/CAIYUNFREEDOM/article/details/90371975

#include <opencv2/opencv.hpp>
#include <iostream>
#include <fstream>
using namespace cv;
using namespace std;
int main() {
	CascadeClassifier face_cascade =
			CascadeClassifier(
					"/home/q/opencv-3.4.6/data/haarcascades/haarcascade_frontalface_default.xml");
	CascadeClassifier eye_cascade = CascadeClassifier(
			"/home/q/opencv-3.4.6/data/haarcascades/haarcascade_eye.xml");
	Mat img = imread("/home/q/f.jpg");
	Mat gray;
	cvtColor(img, gray, COLOR_BGR2GRAY);
	std::vector<Rect> faces;
	std::vector<Rect> eyes;
	face_cascade.detectMultiScale(gray, faces, 1.3, 5);
	eye_cascade.detectMultiScale(gray, eyes, 1.3, 5);
	//for(int i =0;i<faces.size();i++)
	cout << face_cascade.empty() << endl;
	cout << faces.size() << endl;
	cout << eyes.size() << endl;
	for (int i = 0; i < faces.size(); i++)
		rectangle(gray, faces[i], Scalar(0));
	for (int i = 0; i < faces.size(); i++)
		rectangle(img, faces[i], Scalar(0, 200, 0));
	//line(L,Point( i*sz[2],0),Point( i*sz[2],sz[2]*sz[0] ),Scalar(255, 0,0));
	//circle(src, recent_Point, 3, Scalar(25, 0, 0), -1);
	imshow("img", img);
	imshow("g", gray);
	waitKey(0);
	destroyAllWindows();

	return 0;
}