Haar-cascade Detection 얼굴 검출
OpenCV 2019. 12. 15. 16:34 |반응형
It describes how to detect faces with Haar-cascade classifier.
OpenCV에서 Haar-cascade classifier를 이용한 얼굴 검출.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | #include <opencv2/opencv.hpp> using namespace std; using namespace cv; int main() { Mat src = imread("girl.jpg"); if (src.empty()) { cerr << "Image load failed." << endl; return -1; } CascadeClassifier classifier("haarcascade_frontalface_default.xml"); // Cascade classifier class for object detection. if (classifier.empty()) { cerr << "Classifier load failed." << endl; return -1; } vector<Rect> faces; classifier.detectMultiScale(src, faces); // Detects objects of different sizes in the input image. // The detected objects are returned as a list of rectangles. for (Rect rect : faces) { rectangle(src, rect, Scalar(0, 0, 255), 2); } imshow("Face Detection", src); waitKey(0); return 0; } |
Run the program and see the result.
Detected two babies' faces.
It couldn't detect a face with shades and detected some wrong objects.
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