在python中将少量图像存储在单个文件中的有效方法？

from PIL import Image
import numpy as np
import pickle

# 加载图像
image1 = Image.open('image1.jpg')
image2 = Image.open('image2.jpg')

# 将图像转换为NumPy数组
image1_array = np.array(image1)
image2_array = np.array(image2)

# 创建一个字典，将图像数组存储为键值对
image_dict = {'image1': image1_array, 'image2': image2_array}

# 序列化字典并保存到文件
with open('images.pkl', 'wb') as file:
    pickle.dump(image_dict, file)

# 从文件中加载并反序列化图像数据
with open('images.pkl', 'rb') as file:
    loaded_image_dict = pickle.load(file)

# 从字典中获取图像数组
loaded_image1_array = loaded_image_dict['image1']
loaded_image2_array = loaded_image_dict['image2']

# 将数组转换为图像并显示
loaded_image1 = Image.fromarray(loaded_image1_array)
loaded_image2 = Image.fromarray(loaded_image2_array)

loaded_image1.show()
loaded_image2.show()