alpha.py

import numpy as np
import cv2

face_cascade = cv2.CascadeClassifier("plugins/opencv/facemodel.xml")
eye_cascade = cv2.CascadeClassifier("/haarcascade_eye_tree_eyeglasses.xml")

img = cv2.VideoCapture(0)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

faces = face_cascade.detectMultiScale(gray, 1.1, 5, cv2.CASCADE_SCALE_IMAGE, (50, 50), (100, 100))

if len(faces) > 0:
    for faceRect in faces:
        x, y, w, h = faceRect
        cv2.rectangle(img, (x, y), (x + w, y + h), (255, 0, 0), 2, 8, 0)

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

        eyes = eye_cascade.detectMultiScale(roi_gray, 1.1, 1, cv2.CASCADE_SCALE_IMAGE, (2, 2))
        for (ex, ey, ew, eh) in eyes:
            cv2.rectangle(roi_color, (ex, ey), (ex + ew, ey + eh), (0, 255, 0), 2)

cv2.imshow("img", img)
cv2.waitKey(0)