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itkVkForward1DFFTImageFilterBaselineTest.cxx
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itkVkForward1DFFTImageFilterBaselineTest.cxx
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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
*
* 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 <complex>
#include <string>
#include "itkComplexToImaginaryImageFilter.h"
#include "itkComplexToRealImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkVkForward1DFFTImageFilter.h"
#include "itkTestingMacros.h"
template <typename FFTType>
int
doTest(const char * inputImage, const char * outputImagePrefix)
{
using ImageType = typename FFTType::InputImageType;
using ComplexImageType = typename FFTType::OutputImageType;
using ReaderType = itk::ImageFileReader<ImageType>;
using RealFilterType = itk::ComplexToRealImageFilter<ComplexImageType, ImageType>;
using ImaginaryFilterType = itk::ComplexToImaginaryImageFilter<ComplexImageType, ImageType>;
using WriterType = itk::ImageFileWriter<ImageType>;
typename ReaderType::Pointer reader{ ReaderType::New() };
typename FFTType::Pointer fft{ FFTType::New() };
typename RealFilterType::Pointer realFilter{ RealFilterType::New() };
typename ImaginaryFilterType::Pointer imaginaryFilter{ ImaginaryFilterType::New() };
typename WriterType::Pointer writer{ WriterType::New() };
reader->SetFileName(inputImage);
fft->SetInput(reader->GetOutput());
realFilter->SetInput(fft->GetOutput());
imaginaryFilter->SetInput(fft->GetOutput());
writer->SetInput(realFilter->GetOutput());
writer->SetFileName(std::string(outputImagePrefix) + "Real.mha");
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
writer->SetInput(imaginaryFilter->GetOutput());
writer->SetFileName(std::string(outputImagePrefix) + "Imaginary.mha");
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
return EXIT_SUCCESS;
}
int
itkVkForward1DFFTImageFilterBaselineTest(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Missing Parameters." << std::endl;
std::cerr << "Usage: " << argv[0];
std::cerr << " inputImage outputImagePrefix [backend]" << std::endl;
std::cerr << std::flush;
return EXIT_FAILURE;
}
using PixelType = double;
const unsigned int Dimension{ 2 };
using ImageType = itk::Image<PixelType, Dimension>;
using FFTForwardType = itk::VkForward1DFFTImageFilter<ImageType>;
// Instantiate a filter to exercise basic object methods
typename FFTForwardType::Pointer fft{ FFTForwardType::New() };
ITK_EXERCISE_BASIC_OBJECT_METHODS(fft, VkForward1DFFTImageFilter, Forward1DFFTImageFilter);
return doTest<FFTForwardType>(argv[1], argv[2]);
}