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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 "itkImageToHistogramFilter.h"
#include "itkHistogramToLogProbabilityImageFilter.h"
#include "itkImage.h"
#include "itkVectorImage.h"
#include "itkRGBPixel.h"
#include "itkRGBAPixel.h"
#include "itkVector.h"
#include "itkCovariantVector.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkComposeImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
template <typename TVectorImage>
int
itkImageToHistogramFilterTest4Templated(int argc, char * argv[])
{
if (argc < 4)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
std::cerr << " inputImageFileName inputImageFileName outputHistogramFile" << std::endl;
return EXIT_FAILURE;
}
using PixelComponentType = unsigned char;
constexpr unsigned int Dimension = 3;
using VectorPixelType = itk::Vector<PixelComponentType, 2>;
using ImageType = itk::Image<unsigned char, Dimension>;
using VectorImageType = TVectorImage;
using ReaderType = itk::ImageFileReader<ImageType>;
auto reader = ReaderType::New();
reader->SetFileName(argv[1]);
auto reader2 = ReaderType::New();
reader2->SetFileName(argv[2]);
using ComposeType = itk::ComposeImageFilter<ImageType, VectorImageType>;
auto compose = ComposeType::New();
compose->SetInput1(reader->GetOutput());
compose->SetInput2(reader2->GetOutput());
using HistogramFilterType = itk::Statistics::ImageToHistogramFilter<VectorImageType>;
auto histogramFilter = HistogramFilterType::New();
histogramFilter->SetInput(compose->GetOutput());
itk::SimpleFilterWatcher watcher(histogramFilter, "histogramFilter");
using HistogramType = typename HistogramFilterType::HistogramType;
using SizeType = typename HistogramFilterType::HistogramSizeType;
// use a 3D image to check the behavior of HistogramToImageFilter when the image
// is of greater dimension than the histogram
using FloatImageType = itk::Image<float, 3>;
using ImageFilterType = itk::HistogramToLogProbabilityImageFilter<HistogramType, FloatImageType>;
auto imageFilter = ImageFilterType::New();
imageFilter->SetInput(histogramFilter->GetOutput());
itk::SimpleFilterWatcher watcher2(imageFilter, "imageFilter");
using RescaleType = itk::RescaleIntensityImageFilter<FloatImageType, ImageType>;
auto rescale = RescaleType::New();
rescale->SetInput(imageFilter->GetOutput());
using WriterType = itk::ImageFileWriter<ImageType>;
auto writer = WriterType::New();
writer->SetInput(rescale->GetOutput());
writer->SetFileName(argv[3]);
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
// print the image produced by HistogramToLogProbabilityImageFilter for visual inspection
imageFilter->GetOutput()->Print(std::cout);
return EXIT_SUCCESS;
}
int
itkImageToHistogramFilterTest4(int argc, char * argv[])
{
std::string command = argv[1];
argc--;
argv++;
if (command == "Vector")
{
using VectorImageType = itk::Image<itk::Vector<float, 2>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "CovarianVector")
{
using VectorImageType = itk::Image<itk::CovariantVector<float, 2>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "RGBPixel")
{
using VectorImageType = itk::Image<itk::RGBPixel<unsigned char>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "RGBAPixel")
{
using VectorImageType = itk::Image<itk::RGBAPixel<unsigned char>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "FixedArray")
{
using VectorImageType = itk::Image<itk::FixedArray<unsigned char, 2>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "complex")
{
using VectorImageType = itk::Image<std::complex<float>, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
else if (command == "VectorImage")
{
using VectorImageType = itk::VectorImage<unsigned char, 3>;
return itkImageToHistogramFilterTest4Templated<VectorImageType>(argc, argv);
}
std::cout << "Test finished." << std::endl;
return EXIT_FAILURE;
}
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