main.py

# (c) 2021-22 - Ayan Cam | Made by Ayan
# Thanks to Programming Hero for helping me

import cv2
import winsound

cam = cv2.VideoCapture(0)
while cam.isOpened():
    ret, frame1 = cam.read()
    ret, frame2 = cam.read()
    diff = cv2.absdiff(frame1, frame2)
    gray = cv2.cvtColor(diff, cv2.COLOR_RGB2GRAY)
    blur = cv2.GaussianBlur(gray, (5, 5), 0)
    _, tresh = cv2.threshold(blur, 20, 255, cv2.THRESH_BINARY)
    dilated = cv2.dilate(tresh, None, iterations=3)
    contours, _ = cv2.findContours(dilated, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
    # cv2.drawContours(frame1, contours, -1, (0, 255, 0, 2))
    for c in contours:
        if cv2.contourArea(c) < 5000:
            continue
        x, y, w, h = cv2.boundingRect(c)
        cv2.rectangle(frame1, (x, y), (x + w, y + h), (0, 255, 0), 2)
        winsound.PlaySound("alert.wav", winsound.SND_ASYNC)
        cv2.imwrite("screenshot.png", frame2)
    if cv2.waitKey(10) == ord('q'):
        winsound.PlaySound("exit.wav", winsound.SND_ASYNC)
        break
    cv2.imshow("Ayan Cam | App Version 4.5.2", frame1)