画像の余白を10pxに調整.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import os
import random
import string
from PIL import Image, ImageOps


def random_name(n):
   rand_list = [random.choice(string.ascii_lowercase + string.digits) for i in range(n)]
   return ''.join(rand_list)

def main():
  orig_img = Image.open(sys.argv[1])
  
  new_img = Image.new("RGB", orig_img.size, (255, 255, 255))
  new_img.paste(orig_img)
  
  cropped_img = new_img.crop(ImageOps.invert(new_img).getbbox())
  
  # padding = round(min(cropped_img.size) * 0.1)
  padding = 10
  padded_size = tuple(z + padding * 2 for z in cropped_img.size)
  padded_img = Image.new("RGB", padded_size, (255, 255, 255))
  padded_img.paste(cropped_img, (padding, padding))
  
  file_name = os.path.dirname(os.path.abspath(__file__)) + "\\" + random_name(8) + ".jpg"
  padded_img.save(file_name, quality=85, progressive=True)

if __name__ == "__main__":
  main()