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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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 "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkJoinSeriesImageFilter.h"
#include "itkExtractImageFilter.h"
#include "itkPipelineMonitorImageFilter.h"
int itkJoinSeriesImageFilterStreamingTest(int argc, char* argv[] )
{
typedef itk::Image< unsigned char, 3> ImageType;
typedef itk::Image< unsigned char, 2> SliceImageType;
typedef itk::ImageFileReader<ImageType> ImageFileReaderType;
typedef itk::ExtractImageFilter<ImageType,SliceImageType> SliceExtractorFilterType;
typedef itk::JoinSeriesImageFilter<SliceImageType, ImageType> JoinSeriesFilterType;
typedef itk::ImageFileWriter<ImageType> ImageFileWriterType;
if ( argc < 3 )
{
std::cerr << "Usage: " << argv[0] << " InputImage OutputImage" << std::endl;
return EXIT_FAILURE;
}
std::string inputFileName = argv[1];
std::string outputFileName = argv[2];
ImageFileReaderType::Pointer reader = ImageFileReaderType::New();
reader->SetFileName( inputFileName );
reader->UpdateOutputInformation();
const unsigned int numberOfSlices = itk::Math::CastWithRangeCheck<unsigned int>(reader->GetOutput()->GetLargestPossibleRegion().GetSize(2));
itk::PipelineMonitorImageFilter<ImageType>::Pointer monitor1 = itk::PipelineMonitorImageFilter<ImageType>::New();
monitor1->SetInput( reader->GetOutput() );
std::vector<itk::ProcessObject::Pointer> savedPointers;
JoinSeriesFilterType::Pointer joinSeries = JoinSeriesFilterType::New();
joinSeries->SetOrigin( reader->GetOutput()->GetOrigin()[2] );
joinSeries->SetSpacing( reader->GetOutput()->GetSpacing()[2] );
for ( ImageType::SizeValueType z = 0; z < numberOfSlices; ++z )
{
SliceExtractorFilterType::Pointer extractor = SliceExtractorFilterType::New();
extractor->SetDirectionCollapseToSubmatrix();
SliceExtractorFilterType::InputImageRegionType slice( reader->GetOutput()->GetLargestPossibleRegion() );
slice.SetSize( 2, 0 );
slice.SetIndex( 2, z );
extractor->SetExtractionRegion( slice );
extractor->SetInput( monitor1->GetOutput() );
extractor->InPlaceOn();
extractor->ReleaseDataFlagOn();
savedPointers.push_back( extractor.GetPointer() );
joinSeries->PushBackInput( extractor->GetOutput() );
}
itk::PipelineMonitorImageFilter<ImageType>::Pointer monitor2 = itk::PipelineMonitorImageFilter<ImageType>::New();
monitor2->SetInput( joinSeries->GetOutput() );
ImageFileWriterType::Pointer writer = ImageFileWriterType::New();
writer->SetInput( monitor2->GetOutput() );
writer->SetFileName( outputFileName );
writer->SetNumberOfStreamDivisions( numberOfSlices );
try
{
writer->Update();
}
catch (...)
{
std::cerr << "Exception while trying to stream write file." << std::endl;
throw;
}
std::cout << "Number of Updates: " << monitor1->GetNumberOfUpdates() << std::endl;
std::cout << "Verifying ImageFileReader to ExtractImageFilter pipeline interaction" << std::endl;
// We can not use one of the standard verify all methods due to
// multiple filters connected to the output of the reader
if ( !(monitor1->VerifyInputFilterExecutedStreaming( numberOfSlices ) &&
monitor1->VerifyInputFilterMatchedUpdateOutputInformation()) )
{
std::cerr << monitor1;
return EXIT_FAILURE;
}
std::cout << "Verifying JoinSeriesImageFilter to ImageFileWriter pipeline interaction" << std::endl;
if ( !monitor2->VerifyAllInputCanStream( numberOfSlices ) )
{
std::cerr << monitor2;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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