text: # Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # from paddle_serving_server.pipeline import PipelineClient
  import numpy as np
  import requests
  import json
  import cv2
  import base64
  import os
  
  
  def cv2_to_base64(image):
      return base64.b64encode(image).decode('utf8')
  
  
  url = "http://127.0.0.1:9999/ocr/prediction"
  test_img_dir = "imgs/"
  for img_file in os.listdir(test_img_dir):
      with open(os.path.join(test_img_dir, img_file), 'rb') as file:
          image_data1 = file.read()
      image = cv2_to_base64(image_data1)
  
  for i in range(4):
      data = {"key": ["image"], "value": [image]}
      r = requests.post(url=url, data=json.dumps(data))
      print(r.json())
  