tools/accuracy_checker/accuracy_checker/postprocessor/cast_to_int.py

   1 """
   2 Copyright (c) 2019 Intel Corporation
   3
   4 Licensed under the Apache License, Version 2.0 (the "License");
   5 you may not use this file except in compliance with the License.
   6 You may obtain a copy of the License at
   7
   8       http://www.apache.org/licenses/LICENSE-2.0
   9
  10 Unless required by applicable law or agreed to in writing, software
  11 distributed under the License is distributed on an "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 See the License for the specific language governing permissions and
  14 limitations under the License.
  15 """
  16 from functools import singledispatch
  17 from typing import Union
  18 import numpy as np
  19 from ..config import StringField
  20 from ..representation import DetectionAnnotation, DetectionPrediction, TextDetectionPrediction, TextDetectionAnnotation
  21 from .postprocessor import Postprocessor, BasePostprocessorConfig
  22
  23
  24 class CastToInt(Postprocessor):
  25     __provider__ = 'cast_to_int'
  26     annotation_types = (DetectionAnnotation, TextDetectionAnnotation)
  27     prediction_types = (DetectionPrediction, TextDetectionPrediction)
  28
  29     round_policies_func = {
  30         'nearest': np.rint,
  31         'nearest_to_zero': np.trunc,
  32         'lower': np.floor,
  33         'greater': np.ceil
  34     }
  35
  36     def validate_config(self):
  37         class _CastToIntConfigValidator(BasePostprocessorConfig):
  38             round_policy = StringField(optional=True, choices=self.round_policies_func.keys())
  39
  40         cast_to_int_config_validator = _CastToIntConfigValidator(
  41             self.__provider__, on_extra_argument=_CastToIntConfigValidator.ERROR_ON_EXTRA_ARGUMENT
  42         )
  43         cast_to_int_config_validator.validate(self.config)
  44
  45     def configure(self):
  46         self.round_func = self.round_policies_func[self.config.get('round_policy', 'nearest')]
  47
  48     def process_image(self, annotation, prediction):
  49         @singledispatch
  50         def cast(entry):
  51             pass
  52
  53         @cast.register(Union[DetectionAnnotation, DetectionPrediction])
  54         def _(entry):
  55             entry.x_mins = self.round_func(entry.x_mins)
  56             entry.x_maxs = self.round_func(entry.x_maxs)
  57             entry.y_mins = self.round_func(entry.y_mins)
  58             entry.y_maxs = self.round_func(entry.y_maxs)
  59
  60         @cast.register(Union[TextDetectionAnnotation, TextDetectionPrediction])
  61         def _(entry):
  62             entry.points = self.round_func(entry.points)
  63
  64
  65         for annotation_ in annotation:
  66             cast(annotation_)
  67
  68         for prediction_ in prediction:
  69             cast(prediction_)
  70
  71         return annotation, prediction