text: # MIT License
  #
  # Copyright (c) 2019 Tuomas Halvari, Juha Harviainen, Juha Mylläri, Antti Röyskö, Juuso Silvennoinen
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  import time
  import matplotlib.pyplot as plt
  
  from dpemu.nodes import Array
  from dpemu.filters.image import Saturation
  
  
  def main():
      d = {"tar": 1, "rat": 1.1, "range": 1}
      img_path = "data/landscape.png"
  
      data = plt.imread(img_path)
      x_node = Array()
      s = Saturation("tar", "rat", "range")
      x_node.addfilter(s)
      start = time.time()
      result = x_node.generate_error(data, d)
      end = time.time()
      print(f"Time vectorized: {end-start}")
  
      plt.imshow(result)
      plt.show()
  
  
  if __name__ == "__main__":
      main()
  