text: # Copyright 2019 The TensorFlow 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.
  # ==============================================================================
  """Config template to train Retinanet."""
  
  from official.modeling.hyperparams import params_dict
  from official.vision.detection.configs import base_config
  
  
  # pylint: disable=line-too-long
  RETINANET_CFG = params_dict.ParamsDict(base_config.BASE_CFG)
  RETINANET_CFG.override({
      'type': 'retinanet',
      'architecture': {
          'parser': 'retinanet_parser',
      },
      'retinanet_parser': {
          'output_size': [640, 640],
          'num_channels': 3,
          'match_threshold': 0.5,
          'unmatched_threshold': 0.5,
          'aug_rand_hflip': True,
          'aug_scale_min': 1.0,
          'aug_scale_max': 1.0,
          'use_autoaugment': False,
          'autoaugment_policy_name': 'v0',
          'skip_crowd_during_training': True,
          'max_num_instances': 100,
      },
      'retinanet_head': {
          'anchors_per_location': 9,
          'num_convs': 4,
          'num_filters': 256,
          'use_separable_conv': False,
      },
      'retinanet_loss': {
          'focal_loss_alpha': 0.25,
          'focal_loss_gamma': 1.5,
          'huber_loss_delta': 0.1,
          'box_loss_weight': 50,
      },
      'enable_summary': True,
  }, is_strict=False)
  
  RETINANET_RESTRICTIONS = [
  ]
  
  # pylint: enable=line-too-long
  