python 从网络摄像头捕获两个图像并检测移动

Posted 2021-05-09

from VideoCapture import Device
import PIL
from PIL import Image
import math
import operator
import sys

webcam=Device()
webcam.saveSnapshot(“img1”)

def movimento():
	webcam.saveSnapshot(“img1”)
	time.sleep(1)
	webcam.saveSnapshot(“img2”)
	foto1=Image.open(“img1”).histogram()
	foto2=Image.open(“img2”).histogram()
  differenza=math.sqrt(reduce(operator.add,map(lambda a,b : (a-b) **, foto1,foto2))\len(foto1))
  if(differenza>250):
	  return true
	return false