# -*- coding:utf-8 -*-
# @Author len
# @Create 2023/10/25 21:07


from PIL import Image
import os

# 设置要调整大小的目标尺寸
target_size = (800, 480)
# target_size = (480, 320)
# target_size = (480, 480)

# 指定包含背景图像的文件夹路径
folder_path = r"F:\img"

# 遍历文件夹中的每个图像文件
for filename in os.listdir(folder_path):
    # 构建图像文件的完整路径
    file_path = os.path.join(folder_path, filename)

    # 打开图像文件
    with Image.open(file_path) as image:
        # 调整图像大小
        resized_image = image.resize(target_size)

        # 检查是否有Alpha通道
        if image.mode in ("RGBA", "LA") or (image.mode == "P" and "transparency" in image.info):
            # 删除alpha通道
            alpha = resized_image.split()[-1]
            background = Image.new("RGB", resized_image.size, (255, 255, 255))
            background.paste(resized_image, mask=alpha)
            resized_image = background

        # 打印文件路径
        print(file_path)

        # 保存调整大小后的图像
        resized_image.save(file_path)

        # 关闭图像文件不再需要，因为我们使用了上下文管理器'with'