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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 "itkGetAverageSliceImageFilter.h"
#include "itkImageSeriesReader.h"
#include "itkImageSeriesWriter.h"
#include "itkGDCMImageIO.h"
#include "itkGDCMSeriesFileNames.h"
#include "itkTestingMacros.h"
int
itkGetAverageSliceImageFilterTest(int argc, char * argv[])
{
using PixelType = short;
static constexpr int ImageDimension = 3;
using InputImageType = itk::Image<PixelType, ImageDimension>;
using OutputImageType = itk::Image<PixelType, ImageDimension>;
using WriteImageType = itk::Image<unsigned char, ImageDimension>;
using ReaderType = itk::ImageSeriesReader<InputImageType>;
using GetAveragerType = itk::GetAverageSliceImageFilter<InputImageType, OutputImageType>;
using WriterType = itk::ImageSeriesWriter<OutputImageType, WriteImageType>;
using SeriesFileNames = itk::GDCMSeriesFileNames;
using ImageIOType = itk::GDCMImageIO;
if (argc < 4)
{
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " inputDICOMDirectory outputFile averagedOutDimension"
<< std::endl;
return EXIT_FAILURE;
}
// Get the input filenames
auto names = SeriesFileNames::New();
// Get the DICOM filenames from the directory
names->SetInputDirectory(argv[1]);
// Create the reader
auto gdcmIO = ImageIOType::New();
auto reader = ReaderType::New();
reader->SetImageIO(gdcmIO);
try
{
reader->SetFileNames(names->GetInputFileNames());
reader->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Error reading the series" << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
// GetAverage the input images
auto average = GetAveragerType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(average, GetAverageSliceImageFilter, AccumulateImageFilter);
auto averagedOutDimension = static_cast<unsigned int>(std::stoi(argv[3]));
average->SetAveragedOutDimension(averagedOutDimension);
ITK_TEST_SET_GET_VALUE(averagedOutDimension, average->GetAveragedOutDimension());
average->SetInput(reader->GetOutput());
try
{
average->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Error running the average filter" << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
average->GetOutput()->Print(std::cout);
average->Print(std::cout);
try
{
auto writer = WriterType::New();
writer->SetFileName(argv[2]);
writer->SetInput(average->GetOutput());
writer->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Error writing the series" << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test passed." << std::endl;
return EXIT_SUCCESS;
}
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