text: import sys
  import logging
  import os
  import cv2
  from utils import write_image, key_action, init_cam
  
  
  
  if __name__ == "__main__":
  
      # folder to write images to
      out_folder = sys.argv[1]
  
      # maybe you need this
      os.environ['KMP_DUPLICATE_LIB_OK']='True'
  
      logging.getLogger().setLevel(logging.INFO)
     
      # also try out this resolution: 640 x 360
      webcam = init_cam(640, 480)
      key = None
  
      try:
          # q key not pressed 
          while key != 'q':
              # Capture frame-by-frame
              ret, frame = webcam.read()
              # fliping the image 
              frame = cv2.flip(frame, 1)
     
              # draw a [224x224] rectangle into the frame, leave some space for the black border 
              offset = 2
              width = 224
              x = 160
              y = 120
              cv2.rectangle(img=frame, 
                            pt1=(x-offset,y-offset), 
                            pt2=(x+width+offset, y+width+offset), 
                            color=(0, 0, 0), 
                            thickness=2
              )     
              
              # get key event
              key = key_action()
              
              if key == 'space':
                  # write the image without overlay
                  # extract the [224x224] rectangle out of it
                  image = frame[y:y+width, x:x+width, :]
                  write_image(out_folder, image) 
  
              # disable ugly toolbar
              cv2.namedWindow('frame', flags=cv2.WINDOW_GUI_NORMAL)              
              
              # display the resulting frame
              cv2.imshow('frame', frame)            
              
      finally:
          # when everything done, release the capture
          logging.info('quit webcam')
          webcam.release()
          cv2.destroyAllWindows()
  