在Python语言中使用OpenCV从图像裁剪面部

import cv2
import numpy as np

image = cv2.imread('image.jpg')
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=5, minSize=(30, 30))

for (x, y, w, h) in faces:
    face = image[y:y+h, x:x+w]
    cv2.imshow('Face', face)
    cv2.waitKey(0)

cv2.imshow('Face', face)
cv2.waitKey(0)
cv2.destroyAllWindows()