python 如果你发现一张脸，在树莓派上做点什么。另见https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/face_det

Posted 2021-05-10

import time # for timing
from imgproc import *
import RPi.GPIO as GPIO

cam = Camera(160, 120)
view = Viewer(cam.width, cam.height, "Face detection")
while True:
    image = cam.grabImage()
    faces = image.detectFaces()
    if len(faces) > 0:
        GPIO.output(13, GPIO.HIGH)
        time.sleep(0.2)
        GPIO.output(13, GPIO.LOW)
        time.sleep(0.2)