code: def main():
      aug = iaa.BlendAlphaMask(
          iaa.SomeColorsMaskGen(),
          iaa.OneOf([iaa.TotalDropout(1.0), iaa.AveragePooling(8)]),
      )
  
      aug2 = iaa.BlendAlphaSomeColors(
          iaa.OneOf([iaa.TotalDropout(1.0), iaa.AveragePooling(8)])
      )
  
      urls = [
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/"
              "Sarcophilus_harrisii_taranna.jpg/"
              "320px-Sarcophilus_harrisii_taranna.jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/"
              "Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project.jpg/"
              "320px-Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project"
              ".jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/"
              "Galerella_sanguinea_Zoo_Praha_2011-2.jpg/207px-Galerella_sanguinea_"
              "Zoo_Praha_2011-2.jpg"
          ),
          (
              "https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/"
              "Ambrosius_Bosschaert_the_Elder_%28Dutch_-_Flower_Still_Life_-_"
              "Google_Art_Project.jpg/307px-Ambrosius_Bosschaert_the_Elder_%28"
              "Dutch_-_Flower_Still_Life_-_Google_Art_Project.jpg"
          ),
      ]
  
      for url in urls:
          img = imageio.imread(url)
          ia.imshow(
              ia.draw_grid(aug(images=[img] * 25), cols=5, rows=5)
          )
          ia.imshow(
              ia.draw_grid(aug2(images=[img] * 25), cols=5, rows=5)
          )
  
imports: from __future__ import print_function, division, absolute_import
  import imageio
  import imgaug
  import imgaug.augmenters
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types