OpenCV - 파이썬 웹캠 눈, 얼굴 인식

import cv2

face_cascade_filename = 'haarcascade_frontalface_default.xml'
face_cascasde = cv2.CascadeClassifier( cv2.data.haarcascades + face_cascade_filename)

eye_cascade_filename = 'haarcascade_eye.xml'
eye_cascade = cv2.CascadeClassifier( cv2.data.haarcascades + eye_cascade_filename)


capture = cv2.VideoCapture(0)


while cv2.waitKey(33) < 0:
    ret, frame = capture.read()

    faces = face_cascasde.detectMultiScale(frame, 1.3, 5)
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    
    for (x, y, w, h) in faces:
        cv2.rectangle(frame, (x,y), (x + w, y + h), (255,0,0), 2)


        roi_color = frame[y:y + h, x:x + w]
        roi_gray = gray[y:y + h, x:x + w]

        eyes = eye_cascade.detectMultiScale(roi_gray)
        for (ex, ey, ew, eh) in eyes:
            cv2.rectangle(roi_color, (ex, ey), (ex+ew, ey+eh), (0, 255, 0), 2)


    cv2.imshow('frame', frame)

capture.release()
cv2.destroyAllWindows()