<filename>app/readlivevideo.py
import cv2


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

    gray=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
    cv2.imshow('frame',gray)

    if cv2.waitKey(1) & 0XFF==ord('r'):
        break

cap.release()
cv2.destroyAllWindows()

<filename>app/readlivevideo.py
import cv2


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

    gray=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
    cv2.imshow('frame',gray)

    if cv2.waitKey(1) & 0XFF==ord('r'):
        break

cap.release()
cv2.destroyAllWindows()
