text: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  """
  Created on Wed Aug 22 16:29:00 2018
  
  @author: administrator
  """
  import numpy as np
  import cv2
  
  
  def convertColorMask2Ordinary(img):
      
      uniq_scale=np.unique(img)
      
      count=1
      for i in uniq_scale:
          if i>0 and i<256:
              img[img==i]=count
              count+=1
      
      print(np.unique(img))
      return img
      
      
      
  
  
  fname='/home/administrator/data/DAVIS-Semantics/Annotations_semantics/480p/girl-dog/00000.png'
  img=cv2.imread(fname, cv2.IMREAD_GRAYSCALE)
  print(np.unique(img))
  img=convertColorMask2Ordinary(img)
  print(np.unique(img))
      
  
   
      