main.py

import cv2
from PIL import Image
from util import get_limits

green = [0, 255, 0]

cap = cv2.VideoCapture(0)
while True:
    ret, frame = cap.read()

    hsvImage=cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

    lowerLimit, upperLimit = get_limits(color=green)

    mask = cv2.inRange(hsvImage, lowerLimit, upperLimit)
    mask_= Image.fromarray(mask)

    bbox=mask_.getbbox()

    if bbox is not None:
        x1, y1, x2, y2 = bbox
        cv2.rectangle(frame, (x1,y1), (x2,y2),(0,255,0),5)

    cv2.imshow('frame', frame) 

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()