[OpenCV] 영상 얼굴 인식 (face detection)

import cv2

cap = cv2.VideoCapture('testvideo.divx')

face_pattern = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')

while True:

          ret, frame = cap.read()

          gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

          faceList = face_pattern.detectMultiScale(gray, 1.5)

          for (x, y, w, h) in faceList:

                  cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 3)

          cv2.imshow('image', frame)

          if cv2.waitKey(1) & 0xFF == ord('q'):

                 break

cap.release()

cv2.destroyAllWindows()