text: 
  
  ## Saman Farahmand
  ## This python script seelct random tiles from each slide
  
  
  # To add a new cell, type '# %%'
  # To add a new markdown cell, type '# %% [markdown]'
  # %%
  import os
  import cv2
  import numpy as np
  import random
  import shutil
  
  # %%
  mydir="/project/umb_kourosh_zarringhalam/saman/HER2/images/TCGA_raw_output_filtered"
  target_dir="/project/umb_kourosh_zarringhalam/saman/HER2/scripts/"
  os.chdir(mydir)
  # get a number of tiles you want to randomly select for each slide
  rand_num=100
  # number of slides based on subdirectories
  tile_size=512
  
  # %%
  subdirs = [x[0] for x in os.walk(mydir)]
  target_dirs=[]
  for subdir in subdirs:
      if('20.0' in subdir):
          target_dirs.append(subdir)
  
  # %%
  #print(target_dirs)
  vert=[]
  for subdir in target_dirs:
         print(subdir)
         if not os.path.exists(str(subdir.strip('20.0') + '22.0')):
             os.mkdir(str(subdir.strip('20.0') + '22.0'))
         files = os.listdir(subdir)
         print("lenght is: " + str(len(files)))
         if(len(files)!=0):
            for j in range(rand_num):
               index = random.randrange(0, len(files))
               src=str(subdir +'/' +files[index])
               trg=str(subdir.strip('20.0') + '22.0')
               shutil.copy(src, trg)            
  