图片原地批量转换

batch_img_convert.py

#!/usr/bin/env python
#coding:utf-8
# Author:  Sg4Dylan --<sg4dylan#gmail.com>
# Created: 9/28/2018
# ==========================================
# Any>WEBP Any>JPEG 图片原地批量转换
# ==========================================
# 使用方法： 把待转换的文件夹拖放到脚本上

import os
import sys
from PIL import Image
from tqdm import tqdm
import multiprocessing

target_root = ''
if len(sys.argv) > 1:
    target_root = sys.argv[1]
to_webp = False

def convert_core(target_path):
    im = Image.open(target_path)
    im = im.convert('RGB')
    if to_webp:
        im.save(os.path.splitext(target_path)[0]+'.webp','WEBP')
    else:
        im.save(os.path.splitext(target_path)[0]+'.JPG', 'JPEG', quality=100, optimize=True)
    os.remove(target_path)

def get_file_list():
    file_path_list = []
    for root, dirs, files in os.walk(target_root):
        for name in files:
            file_path_list.append(os.path.join(root, name))
    return file_path_list

if __name__ == '__main__':
    multiprocessing.freeze_support()
    file_path_list = get_file_list()
    with multiprocessing.Pool(processes=multiprocessing.cpu_count()) as exec_pool:
        with tqdm(total=len(file_path_list),ascii=True) as pbar:
            for i, _ in tqdm(enumerate(exec_pool.imap_unordered(convert_core, file_path_list))):
                pbar.update()
    os.system('pause')