Python将图片批量从png格式转换至WebP格式

import glob
import os
import threading

from PIL import Image


def create_image(infile, index):
 os.path.splitext(infile)
 im = Image.open(infile)
 im.save("img_webp/webp_" + str(index) + ".webp", "WEBP")


def start():
 index = 0
 for infile in glob.glob("img/*.png"):
  t = threading.Thread(target=create_image, args=(infile, index,))
  t.start()
  t.join()
  index += 1


if __name__ == "__main__":
 start()

import os
import sys

decoder_path = r"path/to/dwebp.exe" # Windows10下其实也支持斜杠/路径
webp_path = r"path/to/webp" # webp文件所在目录,webp文件名不能有空格!
res_path = r"path/to/png_res" # 存储转换后图片的目录,假设是png

if not os.path.exists(res_path) :
  os.mkdir("result")

for f in os.listdir(webp_path):
  res_f = str(f).replace(".webp", ".png") # 若webp文件命名有特殊,这里需要改改映射规则
  cmd = "{0} {1} -o {2}".format(
    decoder_path, os.path.join(webp_path, f), os.path.join(res_path, res_f))
  os.system(cmd)