opencv 20 motion detection

#main.py

import cv2

import numpy as np

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

_, frame1 = cap.read()

_, frame2 = cap.read()

i = 0

while cap.isOpened():

    diff = cv2.absdiff(frame1, frame2)

    gray = cv2.cvtColor(diff, cv2.COLOR_BGR2GRAY)

    blur = cv2.GaussianBlur(gray, (5, 5), 0)

    _, thresh = cv2.threshold(blur, 20, 255, cv2.THRESH_BINARY)

    dilated = cv2.dilate(thresh, None, iterations=3)

    contours, _ = cv2.findContours(dilated, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

    #cv2.drawContours(frame1, contours, -1, (0, 0, 255), 2)

    for contour in contours:

        (x, y, w, h) = cv2.boundingRect(contour)

        if cv2.contourArea(contour) < 2000:

            continue

        cv2.rectangle(frame1, (x, y), (x+w, y+h), (0, 0, 255), 5)

    cv2.imshow('feed', frame1)

    i += 1

    name = 'motion detection/img' + str(i) + '.jpg'

    cv2.imwrite(name, frame1)

    frame1 = frame2

    _, frame2 = cap.read()

    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()

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#screenshot.py

import pyscreenshot as ImageGrab

for i in range(200):

    im = ImageGrab.grab(bbox=(100, 500, 1900, 1500))  # X1,Y1,X2,Y2

    name = 'screenshot/img' + str(i) + '.jpg'

    im.save(name)

reference:

https://www.youtube.com/watch?v=MkcUgPhOlP8&list=PLS1QulWo1RIa7D1O6skqDQ-JZ1GGHKK-K&index=30

screenshot

pip install pyscreenshot

pip install image

https://github.com/ponty/pyscreenshot/tree/2.3

https://stackoverflow.com/questions/8863917/importerror-no-module-named-pil

live cam

https://www.youtube.com/watch?v=iGxFLjqhkSA