DetectionCar.py

import cv2

video_src = 'resource/video480.avi'

cap = cv2.VideoCapture(video_src)
car_cascade = cv2.CascadeClassifier('cascades/cars.xml')

while True:

    ret, img = cap.read()

    if type(img) == type(None):
        break

    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    cars = car_cascade.detectMultiScale(gray, 1.1, 1)

    for (x, y, w, h) in cars:
        cv2.rectangle(img, (x, y), (x + w, y + h), (0, 0, 255), 2)

    cv2.imshow('video-car', img)

    if cv2.waitKey(33) == 27:
        break

cv2.destroyAllWindows()