cloak.py

import cv2
import numpy as np

cap=cv2.VideoCapture(0)
back = cv2.imread('background.jpg')

while cap.isOpened():
    ret,frame = cap.read()
    if ret:
        hsv = cv2.cvtColor(frame,cv2.COLOR_BGR2HSV)
        #cv2.imshow("HSV",hsv)
        # blue = np.uint8([[[0,0,255]]])
        # hsv_blue = cv2.cvtColor(blue,cv2.COLOR_BGR2HSV)

        #print(hsv_red)

        l_blue=np.array([90,85,50])
        u_blue=np.array([128,255,255])

        mask = cv2.inRange(hsv,l_blue,u_blue)
        #cv2.imshow("Mask",mask)

        part1 = cv2.bitwise_and(back,back,mask=mask)
        #cv2.imshow("Half",part1)

        mask=cv2.bitwise_not(mask)
        #cv2.imshow("New mask",mask)

        part2 = cv2.bitwise_and(frame,frame,mask=mask)
        cv2.imshow("Final",part2+part1)

        if cv2.waitKey(5) == ord('q'):
                 break


cap.release()
cv2.destroyAllWindows()