Chuanshuoge: opencv 25 background subtraction

Sunday 28 March 2021

background subtraction detects movement

#main.py

import numpy as np

import cv2

cap = cv2.VideoCapture("assets/live cam.mp4")

background_subtract = cv2.createBackgroundSubtractorMOG2()

while True:

ret, frame = cap.read()

width = int(cap.get(3))

height = int(cap.get(4))

mask = background_subtract.apply(frame)

cv2.imshow('frame', frame)

cv2.imshow('background subtract', mask)

if cv2.waitKey(1) == ord('q'):

break

if cv2.waitKey(1) == ord('p'):

# wait until any key is pressed

cv2.waitKey(-1)

cap.release()

cv2.destroyAllWindows()

reference:

Chuanshuoge