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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 "itkImageRegionIterator.h"
#include "itkMath.h"
#include "itkRandomImageSource.h"
#include "itkRoundImageFilter.h"
#include "itkTestingMacros.h"
int
itkRoundImageFilterTest(int, char *[])
{
constexpr unsigned int Dimension = 2;
using InputPixelType = float;
using OutputPixelType = int;
using InputImageType = itk::Image<InputPixelType, Dimension>;
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
using ImageSourceType = itk::RandomImageSource<InputImageType>;
using FilterType = itk::RoundImageFilter<InputImageType, OutputImageType>;
auto roundImageFilter = FilterType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(roundImageFilter, RoundImageFilter, UnaryGeneratorImageFilter);
// Create a random image
auto randomImageSource = ImageSourceType::New();
const InputImageType::SizeType size{ { 10, 10 } };
randomImageSource->SetSize(size);
randomImageSource->SetMin(0.0);
randomImageSource->SetMax(10.0);
randomImageSource->SetNumberOfWorkUnits(1);
roundImageFilter->SetInput(randomImageSource->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(roundImageFilter->Update());
itk::ImageRegionIterator<InputImageType> it1(randomImageSource->GetOutput(),
randomImageSource->GetOutput()->GetLargestPossibleRegion());
itk::ImageRegionIterator<OutputImageType> it2(roundImageFilter->GetOutput(),
roundImageFilter->GetOutput()->GetLargestPossibleRegion());
it1.GoToBegin();
it2.GoToBegin();
while (!it1.IsAtEnd() || !it2.IsAtEnd())
{
ITK_TEST_EXPECT_EQUAL(itk::Math::Round<OutputImageType::ValueType>(it1.Get()), it2.Get());
++it1;
++it2;
}
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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