tools/accuracy_checker/accuracy_checker/preprocessor/preprocessing_executor.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
  17 from ..config import ConfigValidator, StringField
  18 from ..preprocessor.preprocessors import Preprocessor
  19
  20
  21 class PreprocessingExecutor:
  22     def __init__(self, processors=None, dataset_name='custom', dataset_meta=None):
  23         self.processors = []
  24         self.dataset_meta = dataset_meta
  25
  26         if not processors:
  27             return
  28
  29         identifier = 'type'
  30         for processor in processors:
  31             preprocessor_config = PreprocessorConfig(
  32                 "{}.preprocessors".format(dataset_name), on_extra_argument=ConfigValidator.IGNORE_ON_EXTRA_ARGUMENT
  33             )
  34
  35             type_ = processor.get(identifier)
  36             preprocessor_config.validate(processor, type_)
  37             preprocessor = Preprocessor.provide(processor[identifier], config=processor, name=type_)
  38
  39             self.processors.append(preprocessor)
  40
  41     def process(self, images, batch_annotation=None):
  42         for i, _ in enumerate(images):
  43             for processor in self.processors:
  44                 images[i] = processor(
  45                     image=images[i], annotation_meta=batch_annotation[i].metadata if batch_annotation else None
  46                 )
  47
  48         return images
  49
  50
  51 class PreprocessorConfig(ConfigValidator):
  52     type = StringField(choices=Preprocessor.providers)