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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 "itkRandomImageSource.h"
#include "itkMeanImageFilter.h"
#include "itkTextOutput.h"
#include "itkShiftScaleImageFilter.h"
#include "itkShrinkImageFilter.h"
#include "itkStreamingImageFilter.h"
#include "itkPipelineMonitorImageFilter.h"
int
itkReleaseDataFilterTest(int, char *[])
{
// Comment the following if you want to use the itk text output window
itk::OutputWindow::SetInstance(itk::TextOutput::New());
using ImageType = itk::Image<float, 2>;
using MonitorFilter = itk::PipelineMonitorImageFilter<ImageType>;
// use all the static GlobalReleaseData methods
ImageType::SetGlobalReleaseDataFlag(ImageType::GetGlobalReleaseDataFlag());
ImageType::GlobalReleaseDataFlagOff();
ImageType::GlobalReleaseDataFlagOn();
using RandomImageSourceType = itk::RandomImageSource<ImageType>;
auto random = RandomImageSourceType::New();
random->SetMin(0.0);
random->SetMax(1000.0);
ImageType::SizeValueType randomSize[2];
randomSize[0] = randomSize[1] = 16;
random->SetSize(randomSize);
ImageType::SpacingValueType spacing[2] = { 0.7, 2.1 };
random->SetSpacing(spacing);
ImageType::PointValueType origin[2] = { 15, 400 };
random->SetOrigin(origin);
auto monitor1 = MonitorFilter::New();
monitor1->SetInput(random->GetOutput());
// pipeline a
// Create a mean image
using MeanImageFilterType = itk::MeanImageFilter<ImageType, ImageType>;
auto mean1 = MeanImageFilterType::New();
mean1->SetInput(monitor1->GetOutput());
// define the neighborhood size used for the mean filter
ImageType::SizeType neighRadius;
neighRadius.Fill(2);
mean1->SetRadius(neighRadius);
auto monitor2a = MonitorFilter::New();
monitor2a->SetInput(mean1->GetOutput());
// pipeline b
using ShiftScaleImageFilterType = itk::ShiftScaleImageFilter<ImageType, ImageType>;
auto shiftscale = ShiftScaleImageFilterType::New();
shiftscale->SetInput(monitor1->GetOutput());
shiftscale->SetScale(2.0);
shiftscale->SetShift(-100.0);
using ShrinkImageFilterType = itk::ShrinkImageFilter<ImageType, ImageType>;
auto shrinker = ShrinkImageFilterType::New();
shrinker->SetInput(shiftscale->GetOutput());
shrinker->SetShrinkFactors(2);
auto monitor2b = MonitorFilter::New();
monitor2b->SetInput(shrinker->GetOutput());
using StreamingImageFilterType = itk::StreamingImageFilter<ImageType, ImageType>;
auto streamer = StreamingImageFilterType::New();
streamer->SetInput(monitor2b->GetOutput());
streamer->SetNumberOfStreamDivisions(4);
ImageType::SizeType zeroSize;
zeroSize.Fill(0);
std::cout << "---- Updating \"a\" Pipeline ---" << std::endl;
monitor2a->Update();
if (!monitor1->VerifyAllInputCanStream(1) || !monitor2a->VerifyAllInputCanStream(1) ||
!monitor2b->VerifyAllNoUpdate())
{
std::cout << "Monitor1:\n" << monitor1 << std::endl;
std::cout << "Monitor2a:\n" << monitor2a << std::endl;
std::cout << "Monitor2b:\n" << monitor2b << std::endl;
std::cout << "Monitor's VerifyAllInputCanStream failed!" << std::endl;
return EXIT_FAILURE;
}
if (random->GetOutput()->GetBufferedRegion().GetSize() != zeroSize ||
monitor1->GetOutput()->GetBufferedRegion().GetSize() != zeroSize)
{
std::cout << "Random's output was not release!" << std::endl;
return EXIT_FAILURE;
}
// no updates should happen
std::cout << "---- Reupdating \"a\" Pipeline ---" << std::endl;
monitor2a->Update();
if (!monitor1->VerifyAllNoUpdate() || !monitor2a->VerifyAllNoUpdate() || !monitor2b->VerifyAllNoUpdate())
{
std::cout << "monitor1:\n" << monitor1 << std::endl;
std::cout << "monitor2a:\n" << monitor2a << std::endl;
std::cout << "Monitor2b:\n" << monitor2b << std::endl;
std::cout << "Monitor's VerifyAllNoUpdate failed!" << std::endl;
return EXIT_FAILURE;
}
if (random->GetOutput()->GetBufferedRegion().GetSize() != zeroSize)
{
std::cout << "Random's output was not release!" << std::endl;
return EXIT_FAILURE;
}
monitor2a->ClearPipelineSavedInformation();
std::cout << "---- Streaming \"b\" Pipeline ---" << std::endl;
streamer->Update();
if (!monitor1->VerifyAllInputCanStream(4) || !monitor2a->VerifyAllNoUpdate() ||
!monitor2b->VerifyAllInputCanStream(4))
{
std::cout << "monitor1:\n" << monitor1 << std::endl;
std::cout << "monitor2a:\n" << monitor2a << std::endl;
std::cout << "Monitor2b:\n" << monitor2b << std::endl;
std::cout << "Monitor's VerifyAllNoUpdate failed!" << std::endl;
return EXIT_FAILURE;
}
if (random->GetOutput()->GetBufferedRegion().GetSize() != zeroSize ||
shiftscale->GetOutput()->GetBufferedRegion().GetSize() != zeroSize ||
shrinker->GetOutput()->GetBufferedRegion().GetSize() != zeroSize)
{
std::cout << "random or shiftscale or shrink's output was not release!" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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