import cv2 |
nba = cv2.imread( 'python.jpg' ) |
# 人脸数据,级联分类器,给人脸特征数据,返回可以识别人脸的对象 |
detector = cv2.CascadeClassifier( 'haarcascade_frontalface_default.xml' ) |
face_zone = detector.detectMultiScale(nba) |
for x, y, w, h in face_zone: |
cv2.rectangle(nba, pt1 = (x, y), pt2 = (x + w, y + h), color = [ 0 , 0 , 255 ]) |
cv2.imshow( 'nba' , nba) |
cv2.waitKey( 0 ) |
cv2.destroyAllWindows() |