compress_image.py

from PIL import Image
import PIL
import os

foldernum = 0
dir_name = "./HOPE圖庫"
for folder in os.listdir(dir_name):
    if folder[-1] != 'g':
        for file in os.listdir(dir_name+"/"+folder):
            if file[-1] == 'g': // only handle jpg/png files
                print(folder+"/"+file)
                img = Image.open(dir_name+"/"+folder + "/" + file)
                if  img.size[0]*img.size[1] > 1000000:
                    img.save(dir_name+"/"+folder + "/" + file,optimize=True,quality=30)