def rename_files(self):
        """ 
        calls process_next_batch so that the user can begin renaming the files in the chosen 
        directory. 

         ARGS:
            folder: string containing the absolute path of the directory to be processed
        """

        # Create the save dir:
        self.current_save_folder.set(self.working_dir.get() + "/_renamed_/")
        try:
            os.mkdir(self.current_save_folder.get())
        except:
            print("Folder Exists")

        self.photo_sorter = EyePhotoPatientSorter(self.working_dir.get())
        self.process_next_unlabeled_batch()
 def tag_follicles(self):
     self.photo_sorter = EyePhotoPatientSorter(self.working_dir.get(),
                                               sort=False)
     return