new_contents: import numpy as np
  from PIL import ImageGrab
  import cv2
  import time
  import pyautogui
  from directkeys import PressKey, W, A, S, D
  
  def process_img(image):
      original_image = image
      # convert to gray
      processed_img = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
      # edge detection
      processed_img =  cv2.Canny(processed_img, threshold1 = 200, threshold2=300)
      return processed_img
  
  def main():
      
      for i in list(range(4))[::-1]:
          print(i+1)
          time.sleep(1)
  
      last_time = time.time()
      while True:
          PressKey(W)
          screen =  np.array(ImageGrab.grab(bbox=(0,40,800,640)))
          #print('Frame took {} seconds'.format(time.time()-last_time))
          last_time = time.time()
          new_screen = process_img(screen)
          cv2.imshow('window', new_screen)
          #cv2.imshow('window',cv2.cvtColor(screen, cv2.COLOR_BGR2RGB))
          if cv2.waitKey(25) & 0xFF == ord('q'):
              cv2.destroyAllWindows()
              break
  
subject: Create part-2-keyboard-input-and-basic-OpenCV.py