05/14 끝

ch13/cascade/main.cpp

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+#include <iostream>
+#include "opencv2/opencv.hpp"
+
+using namespace std;
+using namespace cv;
+
+void detect_face() {
+	Mat src = imread("../../resources/images/kids.png");
+
+	CascadeClassifier classifier("../../resources/haarcascade_frontalface_default.xml");
+
+	vector<Rect> faces;
+	classifier.detectMultiScale(src, faces);
+
+	for (auto rc : faces)
+		rectangle(src, rc, Scalar(255, 0, 255), 2);
+
+	imshow("src", src);
+
+	waitKey();
+	destroyAllWindows();
+}
+
+void detect_eyes() {
+	Mat src = imread("../../resources/images/kids.png");
+
+	CascadeClassifier face_classifier("../../resources/haarcascade_frontalface_default.xml");
+	CascadeClassifier eye_classifier("../../resources/haarcascade_eye.xml");
+
+	vector<Rect> faces;
+	face_classifier.detectMultiScale(src, faces);
+
+	for (auto face : faces) {
+		rectangle(src, face, Scalar(255, 0, 255), 2);
+
+		Mat faceROI = src(face);
+
+		vector<Rect> eyes;
+		eye_classifier.detectMultiScale(faceROI, eyes);
+
+		for (Rect eye : eyes) {
+			Point center(eye.x + eye.width / 2, eye.y + eye.height / 2);
+			circle(faceROI, center, eye.width /2, Scalar(255, 0, 0), 2, LINE_AA);
+		}
+	}
+
+	imshow("src", src);
+
+	waitKey();
+	destroyAllWindows();
+}
+
+int main() {
+	detect_eyes();
+}