chromium/third_party/mediapipe/src/mediapipe/tasks/cc/components/calculators/score_calibration_utils.cc

// Copyright 2022 The MediaPipe Authors.
//
// 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 "mediapipe/tasks/cc/components/calculators/score_calibration_utils.h"

#include <vector>

#include "absl/status/status.h"
#include "absl/strings/numbers.h"
#include "absl/strings/str_format.h"
#include "absl/strings/str_split.h"
#include "absl/strings/string_view.h"
#include "mediapipe/framework/port/status_macros.h"
#include "mediapipe/tasks/cc/common.h"
#include "mediapipe/tasks/cc/components/calculators/score_calibration_calculator.pb.h"
#include "mediapipe/tasks/metadata/metadata_schema_generated.h"

namespace mediapipe {
namespace tasks {

namespace {
// Converts ScoreTransformation type from TFLite Metadata to calculator options.
ScoreCalibrationCalculatorOptions::ScoreTransformation
ConvertScoreTransformationType(tflite::ScoreTransformationType type) { … }

// Parses a single line of the score calibration file into the provided sigmoid.
absl::Status FillSigmoidFromLine(
    absl::string_view line,
    ScoreCalibrationCalculatorOptions::Sigmoid* sigmoid) { … }
}  // namespace

absl::Status ConfigureScoreCalibration(
    tflite::ScoreTransformationType score_transformation, float default_score,
    absl::string_view score_calibration_file,
    ScoreCalibrationCalculatorOptions* calculator_options) { … }

}  // namespace tasks
}  // namespace mediapipe