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egs/yomdle_zh/v1/local/process_data.py 2.45 KB
8dcb6dfcb   Yannick Estève   first commit
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  #!/usr/bin/env python3
  
  # Copyright      2018  Ashish Arora
  #                2018  Chun Chieh Chang
  
  """ This script reads the extracted Farsi OCR (yomdle and slam) database files 
      and creates the following files (for the data subset selected via --dataset):
      text, utt2spk, images.scp.
    Eg. local/process_data.py data/download/ data/local/splits/train.txt data/train
    Eg. text file: english_phone_books_0001_1 To sum up, then, it would appear that
        utt2spk file: english_phone_books_0001_0 english_phone_books_0001
        images.scp file: english_phone_books_0001_0 \
        data/download/truth_line_image/english_phone_books_0001_0.png
  """
  
  import argparse
  import os
  import sys
  import csv
  import itertools
  import unicodedata
  
  parser = argparse.ArgumentParser(description="Creates text, utt2spk, and images.scp files")
  parser.add_argument('database_path', type=str, help='Path to data')
  parser.add_argument('out_dir', type=str, help='directory to output files')
  parser.add_argument('--head', type=int, default=-1, help='limit on number of synth data')
  args = parser.parse_args()
  
  ### main ###
  print("Processing '{}' data...".format(args.out_dir))
  
  text_file = os.path.join(args.out_dir, 'text')
  text_fh = open(text_file, 'w', encoding='utf-8')
  utt2spk_file = os.path.join(args.out_dir, 'utt2spk')
  utt2spk_fh = open(utt2spk_file, 'w', encoding='utf-8')
  image_file = os.path.join(args.out_dir, 'images.scp')
  image_fh = open(image_file, 'w', encoding='utf-8')
  
  count = 0
  for filename in sorted(os.listdir(os.path.join(args.database_path, 'truth_csv'))):
      if filename.endswith('.csv') and (count < args.head or args.head < 0):
          count = count + 1
          csv_filepath = os.path.join(args.database_path, 'truth_csv', filename)
          csv_file = open(csv_filepath, 'r', encoding='utf-8')
          row_count = 0
          for row in csv.reader(csv_file):
              if row_count == 0:
                  row_count = 1
                  continue
              image_id = os.path.splitext(row[1])[0]
              image_filepath = os.path.join(args.database_path, 'truth_line_image', row[1])
              text = unicodedata.normalize('NFC', row[11]).replace('
  ', '')
              if os.path.isfile(image_filepath) and os.stat(image_filepath).st_size != 0 and text:
                  text_fh.write(image_id + ' ' + text + '
  ')
                  utt2spk_fh.write(image_id + ' ' + '_'.join(image_id.split('_')[:-1]) + '
  ')
                  image_fh.write(image_id + ' ' + image_filepath + ' ' + row[13] +  '
  ')