批量修改json 字典中的参数imagePath的值和imageData 的值

 1.批量修改参数imagePath

import json  
import os  
  
# 设置文件夹路径  
folder_path = 'E:\\data_seg\\quanjingCameraPicture\\'  
  
# 循环从2到2275  
for i in range(2, 2276):  
    # 创建文件名  
    file_name = 'segdata' + str(i).zfill(4) + '.json'  
    file_path = os.path.join(folder_path, file_name)  
  
    # 读取文件  
    with open(file_path, 'r') as json_file:  
        data = json.load(json_file)  
  
    # 修改参数  
    data['imagePath'] = 'segdata' + str(i).zfill(4) + '.jpg'  
  
    # 重新写入文件  
    with open(file_path, 'w') as json_file:  
        json.dump(data, json_file, indent=4)  

2.批量修改imageData 的值

import json  
import os  
import base64  
from PIL import Image  
import io  
  
# 设置文件夹路径  
folder_path = 'E:\\data_seg\\quanjingCameraPicture\\'  
  
# 循环从2到2275  
for i in range(2, 2276):  
    # 创建文件名  
    json_file_name = 'segdata' + str(i).zfill(4) + '.json'  
    img_file_name = 'segdata' + str(i).zfill(4) + '.jpg'  
  
    json_file_path = os.path.join(folder_path, json_file_name)  
    img_file_path = os.path.join(folder_path, img_file_name)  
  
    # 将图像转换为Base64编码的字节流  
    with Image.open(img_file_path) as img:  
        buf = io.BytesIO()  
        img.save(buf, format='JPEG')  
        base64_data = base64.b64encode(buf.getvalue()).decode()  
  
    # 读取JSON文件  
    with open(json_file_path, 'r') as json_file:  
        data = json.load(json_file)  
  
    # 修改参数  
    data['imageData'] = base64_data  
  
    # 重新写入文件  
    with open(json_file_path, 'w') as json_file:  
        json.dump(data, json_file, indent=4)