改变png图像大小

import os
from PIL import Image


def save_resize_img(img_path, img_path_train, width, height):#(数据存放路径，保留数据路径，改变的宽，高)
    for i in os.listdir(img_path):
        image = os.path.join(img_path, i)
        img = Image.open(image)
        img = img.resize((width, height), Image.ANTIALIAS)
        img.save(img_path_train + i)


if __name__ == '__main__':
    save_resize_img("C:/Users/User/Desktop/colon/test_data/", "C:/Users/User/Desktop/colon/test_data1/", 256, 256)  # 注意路径后加  /