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/*=========================================================================
*
* 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
*
* https://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 "itkLabelImageToShapeLabelMapFilter.h"
#include "itkConvertLabelMapFilter.h"
#include "itkTestingMacros.h"
#include "itkSimpleFilterWatcher.h"
int
itkConvertLabelMapFilterTest1(int argc, char * argv[])
{
if (argc != 3)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
std::cerr << " inputLabelImage outputLabelImage";
std::cerr << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int dim = 2;
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, dim>;
using ReaderType = itk::ImageFileReader<ImageType>;
auto reader = ReaderType::New();
reader->SetFileName(argv[1]);
using L2SType = itk::LabelImageToShapeLabelMapFilter<ImageType>;
auto l2s = L2SType::New();
l2s->SetInput(reader->GetOutput());
using LabelObjectType = itk::LabelObject<PixelType, dim>;
using LabelMapType = itk::LabelMap<LabelObjectType>;
using CastType = itk::ConvertLabelMapFilter<L2SType::OutputImageType, LabelMapType>;
auto cast = CastType::New();
cast->SetInput(l2s->GetOutput());
itk::SimpleFilterWatcher watcher(cast, "cast");
using L2IType = itk::LabelMapToLabelImageFilter<LabelMapType, ImageType>;
auto l2i = L2IType::New();
l2i->SetInput(cast->GetOutput());
using WriterType = itk::ImageFileWriter<ImageType>;
auto writer = WriterType::New();
writer->SetInput(l2i->GetOutput());
writer->SetFileName(argv[2]);
writer->UseCompressionOn();
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
// for visual validation
std::cout << " ============ original label map ============" << std::endl;
l2s->GetOutput()->PrintLabelObjects();
std::cout << " ============ casted label map ============" << std::endl;
cast->GetOutput()->PrintLabelObjects();
return EXIT_SUCCESS;
}
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