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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkJoinSeriesImageFilterStreamingTest.cxx,v $
Language: C++
Date: $Date: 2009-12-23 16:42:46 $
Version: $Revision: 1.2 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkJoinSeriesImageFilter.h"
#include "itkExtractImageFilter.h"
#include "itkImageRegionIterator.h"
#include "../IO/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();
SliceExtractorFilterType::InputImageRegionType slice( reader->GetOutput()->GetLargestPossibleRegion() );
slice.SetSize( 2, 0 );
slice.SetIndex( 2, z );
extractor->SetExtractionRegion( slice );
extractor->SetInput( monitor1->GetOutput() );
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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