import numpy as np
import cv2
cap = cv2.VideoCapture(0)

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()
    # Display the resulting frame
    cv2.imshow('frame',frame)
    k = cv2.waitKey(30)
    if k == 27:
        break
# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()
