text: /*=========================================================================
   *
   *  Copyright NumFOCUS
   *
   *  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.txt
   *
   *  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 "itkImageFileReader.h"
  #include "itkImageFileWriter.h"
  #include "itkImage.h"
  #include "itkBinaryThresholdImageFilter.h"
  
  int
  main(int argc, char * argv[])
  {
    if (argc < 7)
    {
      std::cerr << "Usage: " << std::endl;
      std::cerr << argv[0] << std::endl;
      std::cerr << " <InputImage> <OutputImage> <LowerThreshold>";
      std::cerr << " <UpperThreshold> <OutsideValue> <InsideValue>" << std::endl;
      return EXIT_FAILURE;
    }
  
    constexpr unsigned int Dimension = 2;
    using PixelType = unsigned char;
  
    const char * InputImage = argv[1];
    const char * OutputImage = argv[2];
  
    const auto LowerThreshold = static_cast<PixelType>(atoi(argv[3]));
    const auto UpperThreshold = static_cast<PixelType>(atoi(argv[4]));
    const auto OutsideValue = static_cast<PixelType>(atoi(argv[5]));
    const auto InsideValue = static_cast<PixelType>(atoi(argv[6]));
  
    using ImageType = itk::Image<PixelType, Dimension>;
  
    using ReaderType = itk::ImageFileReader<ImageType>;
    ReaderType::Pointer reader = ReaderType::New();
    reader->SetFileName(InputImage);
  
    using FilterType = itk::BinaryThresholdImageFilter<ImageType, ImageType>;
    FilterType::Pointer filter = FilterType::New();
    filter->SetInput(reader->GetOutput());
    filter->SetLowerThreshold(LowerThreshold);
    filter->SetUpperThreshold(UpperThreshold);
    filter->SetOutsideValue(OutsideValue);
    filter->SetInsideValue(InsideValue);
  
    using WriterType = itk::ImageFileWriter<ImageType>;
    WriterType::Pointer writer = WriterType::New();
    writer->SetFileName(OutputImage);
    writer->SetInput(filter->GetOutput());
  
    try
    {
      writer->Update();
    }
    catch (itk::ExceptionObject & e)
    {
      std::cerr << "Error: " << e << std::endl;
      return EXIT_FAILURE;
    }
  
    return EXIT_SUCCESS;
  }
  