code: import PIL.Image
  from io import BytesIO
  from IPython.display import clear_output, Image, display
  import numpy as np
  
  
  def showarray(a, fmt='jpeg'):
      a = np.uint8(np.clip(a, 0, 255))
      f = BytesIO()
      PIL.Image.fromarray(a).save(f, fmt)
      display(Image(data=f.getvalue()))
  
  
  def showtensor(a):
      mean = np.array([0.485, 0.456, 0.406]).reshape([1, 1, 3])
      std = np.array([0.229, 0.224, 0.225]).reshape([1, 1, 3])
      inp = a[0, :, :, :]
      inp = inp.transpose(1, 2, 0)
      inp = std * inp + mean
      inp *= 255
      showarray(inp)
      clear_output(wait=True)
  
apis: numpy.array numpy.clip