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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 "itkConnectedComponentImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkSignedDanielssonDistanceMapImageFilter.h"
#include "itkTestingMacros.h"
int
itkSignedDanielssonDistanceMapImageFilterTest2(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
std::cerr << " InputImage OutputImage" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int ImageDimension = 2;
using InputPixelType = unsigned char;
using OutputPixelType = float;
using InputImageType = itk::Image<InputPixelType, ImageDimension>;
using OutputImageType = itk::Image<OutputPixelType, ImageDimension>;
using ReaderType = itk::ImageFileReader<InputImageType>;
using WriterType = itk::ImageFileWriter<OutputImageType>;
auto reader = ReaderType::New();
reader->SetFileName(argv[1]);
reader->Update();
using ConnectedType = itk::ConnectedComponentImageFilter<InputImageType, InputImageType>;
auto connectedComponents = ConnectedType::New();
connectedComponents->SetInput(reader->GetOutput());
using FilterType = itk::SignedDanielssonDistanceMapImageFilter<InputImageType, OutputImageType>;
auto filter = FilterType::New();
filter->SetInput(connectedComponents->GetOutput());
filter->Update();
filter->Print(std::cout);
// Extract the Voronoi map from the distance map filter, rescale it,
// and write it out.
using RescaleType = itk::RescaleIntensityImageFilter<InputImageType, OutputImageType>;
auto rescaler = RescaleType::New();
rescaler->SetInput(filter->GetVoronoiMap());
rescaler->SetOutputMinimum(0);
rescaler->SetOutputMaximum(255);
auto writer = WriterType::New();
writer->SetInput(rescaler->GetOutput());
writer->SetFileName(argv[2]);
writer->UseCompressionOn();
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
return EXIT_SUCCESS;
}
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