如何读取json文件中的图像子集，而不是整个数据集？

import json
from PIL import Image

def read_images_from_json(json_file, subset_condition):
    # 1. 读取json文件
    with open(json_file, 'r') as file:
        data = json.load(file)

    image_subset = []  # 存储筛选出的图像子集

    # 2. 遍历json数据结构
    for item in data:
        # 3. 筛选图像子集
        if subset_condition in item['label']:
            image_path = item['image_path']
            # 4. 读取图像子集
            image = Image.open(image_path)
            image_subset.append(image)

    return image_subset

# 示例用法
subset_condition = 'cat'  # 假设需要筛选标签包含'cat'的图像子集
json_file = 'data.json'  # 假设json文件名为'data.json'
subset_images = read_images_from_json(json_file, subset_condition)

# 可以对读取的图像子集进行进一步处理或分析
for image in subset_images:
    image.show()