python - 如何使用 Google Protobuf 解析、编辑和生成 object_detection/pipeline.config 文件

Question

• 我正在通用集成学习范例中训练多个模型， 目前我正在使用一些探测器，每次训练时我 必须编辑每个检测器的配置文件，这显然会导致 困惑，有几次我开始使用错误的配置进行训练 文件。
• 作为解决方案，我正在尝试为 Google 对象检测 API 构建一个编辑器 配置文件。配置文件适用于 Google Protocol Buffer .
• 链接到我使用的文件:pipeline.proto , object_detection/protos ，例如.config file

我尝试过以下代码:

from object_detection.protos import input_reader_pb2
with open('/models/research/object_detection/samples/configs/ssd_resnet50_v1_fpn_shared_box_predictor_640x640_coco14_sync.config', 'rb') as f:
    config = f.read()

read = input_reader_pb2.InputReader().ParseFromString(config)

我收到以下错误:

    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-19-8043e6bb108f>", line 1, in <module>
    input_reader_pb2.InputReader().ParseFromString(txt)
google.protobuf.message.DecodeError: Error parsing message

我在这里缺少什么？解析和编辑配置文件的适当方法是什么？

谢谢

霍德

Answer 1

使用以下代码我能够解析配置文件。

import tensorflow as tf
from google.protobuf import text_format

from object_detection.protos import pipeline_pb2

def get_configs_from_pipeline_file(pipeline_config_path, config_override=None):

  '''
  read .config and convert it to proto_buffer_object
  '''

  pipeline_config = pipeline_pb2.TrainEvalPipelineConfig()
  with tf.gfile.GFile(pipeline_config_path, "r") as f:
    proto_str = f.read()
    text_format.Merge(proto_str, pipeline_config)
  if config_override:
    text_format.Merge(config_override, pipeline_config)
  #print(pipeline_config)
  return pipeline_config


def create_configs_from_pipeline_proto(pipeline_config):
  '''
  Returns the configurations as dictionary
  '''

  configs = {}
  configs["model"] = pipeline_config.model
  configs["train_config"] = pipeline_config.train_config
  configs["train_input_config"] = pipeline_config.train_input_reader
  configs["eval_config"] = pipeline_config.eval_config
  configs["eval_input_configs"] = pipeline_config.eval_input_reader
  # Keeps eval_input_config only for backwards compatibility. All clients should
  # read eval_input_configs instead.
  if configs["eval_input_configs"]:
    configs["eval_input_config"] = configs["eval_input_configs"][0]
  if pipeline_config.HasField("graph_rewriter"):
    configs["graph_rewriter_config"] = pipeline_config.graph_rewriter

  return configs


configs = get_configs_from_pipeline_file('faster_rcnn_resnet101_pets.config')
config_as_dict = create_configs_from_pipeline_proto(configs)

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