chromium/third_party/tflite_support/src/tensorflow_lite_support/cc/task/vision/image_classifier.cc

/* Copyright 2020 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.
==============================================================================*/

#include "tensorflow_lite_support/cc/task/vision/image_classifier.h"

#include "absl/algorithm/container.h"  // from @com_google_absl
#include "absl/strings/str_format.h"  // from @com_google_absl
#include "absl/strings/string_view.h"  // from @com_google_absl
#include "flatbuffers/flatbuffers.h"  // from @flatbuffers
#include "tensorflow_lite_support/cc/common.h"
#include "tensorflow_lite_support/cc/port/integral_types.h"
#include "tensorflow_lite_support/cc/port/status_macros.h"
#include "tensorflow_lite_support/cc/task/core/task_api_factory.h"
#include "tensorflow_lite_support/cc/task/core/task_utils.h"
#include "tensorflow_lite_support/cc/task/core/tflite_engine.h"
#include "tensorflow_lite_support/cc/task/vision/core/label_map_item.h"
#include "tensorflow_lite_support/cc/task/vision/proto/class_proto_inc.h"
#include "tensorflow_lite_support/cc/task/vision/utils/frame_buffer_utils.h"
#include "tensorflow_lite_support/metadata/cc/metadata_extractor.h"
#include "tensorflow_lite_support/metadata/metadata_schema_generated.h"

namespace tflite {
namespace task {
namespace vision {

namespace {

StatusCode;
ModelMetadataExtractor;
CreateStatusWithPayload;
StatusOr;
TfLiteSupportStatus;
AssertAndReturnTypedTensor;
TaskAPIFactory;
TfLiteEngine;

}  // namespace

/* static */
StatusOr<std::unique_ptr<ImageClassifier>> ImageClassifier::CreateFromOptions(
    const ImageClassifierOptions& options,
    std::unique_ptr<tflite::OpResolver> resolver) { … }

/* static */
absl::Status ImageClassifier::SanityCheckOptions(
    const ImageClassifierOptions& options) { … }

absl::Status ImageClassifier::Init(
    std::unique_ptr<ImageClassifierOptions> options) { … }

absl::Status ImageClassifier::PreInit() { … }

absl::Status ImageClassifier::PostInit() { … }

absl::Status ImageClassifier::CheckAndSetOutputs() { … }

absl::Status ImageClassifier::CheckAndSetClassNameSet() { … }

absl::Status ImageClassifier::InitScoreCalibrations() { … }

StatusOr<ClassificationResult> ImageClassifier::Classify(
    const FrameBuffer& frame_buffer) { … }

StatusOr<ClassificationResult> ImageClassifier::Classify(
    const FrameBuffer& frame_buffer, const BoundingBox& roi) { … }

StatusOr<ClassificationResult> ImageClassifier::Postprocess(
    const std::vector<const TfLiteTensor*>& output_tensors,
    const FrameBuffer& /*frame_buffer*/, const BoundingBox& /*roi*/) { … }

absl::Status ImageClassifier::FillResultsFromLabelMaps(
    ClassificationResult* result) { … }

}  // namespace vision
}  // namespace task
}  // namespace tflite