text: import numpy as np
  import cv2
  
  cap = cv2.VideoCapture('MOV_0144_1.mp4')
  
  while(cap.isOpened()):
      ret, frame = cap.read()
  
      gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
  
      cv2.imshow('frame',gray)
      if cv2.waitKey(1) & 0xFF == ord('q'):
          break
  
  cap.release()
  cv2.destroyAllWindows()
  