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) _, 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_NONE) cv2.drawContours(frame1, contours, -1, (0, 255, 255), 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.Beep(500, 500) if cv2.waitKey(10) == ord('q'): break cv2.imshow('My cam', frame1)