old_contents: # -*- coding: utf-8 -*-
  import threading
  import os
  import shutil
  from PIL import Image, ImageDraw2, ImageDraw, ImageFont
  import random
  
  count = range(0, 200)
  path = './generatedNumberImages'
  text = '0123456789X'
  
  def start():
      if os.path.exists(path):
          shutil.rmtree(path)
      os.mkdir(path)
  
      for idx in count:
          t = threading.Thread(target=create_image, args=([idx]))
          t.start()
  
  def create_image(idx):
      o_image = Image.open('background.png')
  
      drawBrush = ImageDraw.Draw(o_image)
      drawBrush.text((100 + random.randint(-30, 30), 20 + random.randint(-5, 5)), text, fill='black', font=ImageFont.truetype('./OCR-B 10 BT.ttf', 20 + random.randint(-5, 5)))
  
      o_image.rotate(random.randint(-2, 2)).save(path + '/%d.png' % idx)
  
  if __name__ == '__main__':
      start()
  
new_contents: # -*- coding: utf-8 -*-
  import threading
  import os
  import shutil
  from PIL import Image, ImageDraw2, ImageDraw, ImageFont, ImageEnhance
  import random
  
  count = range(0, 200)
  path = './generatedNumberImages'
  text = '0123456789X'
  
  def start():
      if os.path.exists(path):
          shutil.rmtree(path)
      os.mkdir(path)
  
      for idx in count:
          t = threading.Thread(target=create_image, args=([idx]))
          t.start()
  
  def create_image(idx):
      o_image = Image.open('background.png')
  
      drawBrush = ImageDraw.Draw(o_image)
      drawBrush.text((100 + random.randint(-30, 30), 20 + random.randint(-5, 5)), text, fill='black', font=ImageFont.truetype('./OCR-B 10 BT.ttf', 20 + random.randint(-5, 5)))
  
      o_image = ImageEnhance.Color(o_image).enhance(random.uniform(0, 2)) # 着色
      o_image = ImageEnhance.Brightness(o_image).enhance(random.uniform(0.3, 2)) #亮度
      o_image = ImageEnhance.Contrast(o_image).enhance(random.uniform(0.2, 2)) # 对比度
      o_image = ImageEnhance.Sharpness(o_image).enhance(random.uniform(0.2, 3.0)) #对比度
      o_image = o_image.rotate(random.randint(-2, 2))
  
      o_image.save(path + '/%d.png' % idx)
  
  if __name__ == '__main__':
      start()
  
subject: Add Image Enhance for generated image.