new_contents: from __future__ import print_function, division
  import imgaug as ia
  from imgaug import augmenters as iaa
  import numpy as np
  from skimage import data
  import cv2
  from itertools import cycle
  
  VAL_PER_STEP = 1
  TIME_PER_STEP = 10
  
  
  def main():
      image = data.astronaut()
  
      cv2.namedWindow("aug", cv2.WINDOW_NORMAL)
      cv2.imshow("aug", image)
      cv2.waitKey(TIME_PER_STEP)
  
      # for value in cycle(np.arange(-255, 255, VAL_PER_STEP)):
      for value in np.arange(-255, 255, VAL_PER_STEP):
          aug = iaa.AddToHueAndSaturation(value=value)
          img_aug = aug.augment_image(image)
          img_aug = ia.pad(img_aug, bottom=40)
          img_aug = ia.draw_text(img_aug, x=0, y=img_aug.shape[0]-38, text="value=%d" % (value,), size=30)
  
          cv2.imshow("aug", img_aug)
          cv2.waitKey(TIME_PER_STEP)
  
      images_aug = iaa.AddToHueAndSaturation(value=(-255, 255), per_channel=True).augment_images([image] * 64)
      ia.imshow(ia.draw_grid(images_aug))
  
  
  if __name__ == "__main__":
      main()
  
subject: Add check for AddToHueAndSaturation