如何在numpy数组中保存多个带标签的图像？

import numpy as np

# 创建一个空字典
image_dict = {}

# 创建图像数据
image1 = np.array([[1, 2, 3], [4, 5, 6]])
image2 = np.array([[7, 8, 9], [10, 11, 12]])
image3 = np.array([[13, 14, 15], [16, 17, 18]])

# 将图像和标签添加到字典中
image_dict['image1'] = image1
image_dict['image2'] = image2
image_dict['image3'] = image3

# 输出字典内容
print(image_dict)

{'image1': array([[1, 2, 3],
       [4, 5, 6]]), 'image2': array([[ 7,  8,  9],
       [10, 11, 12]]), 'image3': array([[13, 14, 15],
       [16, 17, 18]])}

image2_data = image_dict['image2']
print(image2_data)

[[ 7  8  9]
 [10 11 12]]