import numpy as np
import cv2

cap = cv2.VideoCapture(0)
cap = cv2.VideoCapture("pf2.AVI")

fgbg = cv2.BackgroundSubtractorMOG2()

while(1):
    ret, frame = cap.read()

    fgmask = fgbg.apply(frame)

    cv2.imshow('frame',fgmask)
    cv2.imshow('frame Original',frame)
    k = cv2.waitKey(30) & 0xff
    if k == 27:
        break

cap.release()
cv2.destroyAllWindows()