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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkChangeLabelLabelMapFilterTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
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.
=========================================================================*/
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkLabelObject.h"
#include "itkLabelMap.h"
#include "itkLabelImageToLabelMapFilter.h"
#include "itkChangeLabelLabelMapFilter.h"
#include "itkLabelMapToLabelImageFilter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
int itkChangeLabelLabelMapFilterTest( int argc, char * argv [] )
{
if( argc < 5 )
{
std::cerr << "usage: " << argv[0] << " inputLabelImage outputLabelImage ";
std::cerr << " old_label_1 new_label_1" << std::endl;
std::cerr << " [old_label_2 new_label_2]" << std::endl;
std::cerr << " [old_label_3 new_label_3]" << std::endl;
std::cerr << " ... " << std::endl;
std::cerr << " [old_label_n new_label_n]" << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef unsigned char ImagePixelType;
typedef unsigned char LabelPixelType;
typedef itk::Image< ImagePixelType, Dimension > ImageType;
typedef itk::LabelObject< LabelPixelType, Dimension > LabelObjectType;
typedef itk::LabelMap< LabelObjectType > LabelMapType;
typedef itk::ImageFileReader< ImageType > ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
typedef itk::LabelImageToLabelMapFilter< ImageType, LabelMapType> I2LType;
I2LType::Pointer i2l = I2LType::New();
i2l->SetInput( reader->GetOutput() );
typedef itk::ChangeLabelLabelMapFilter< LabelMapType > ChangeLabelFilterType;
ChangeLabelFilterType::Pointer changeFilter = ChangeLabelFilterType::New();
changeFilter->SetInput( i2l->GetOutput() );
const unsigned int numberOfArgumentsBeforeLabels = 3;
const unsigned int numberOfArguments = argc;
typedef itk::NumericTraits< LabelPixelType >::PrintType LabelPrintType;
for( unsigned int i = numberOfArgumentsBeforeLabels; i < numberOfArguments; i += 2 )
{
const LabelPixelType oldLabel = atoi( argv[i] );
const LabelPixelType newLabel = atoi( argv[i+1] );
std::cout << "Label pair : ";
std::cout << static_cast< LabelPrintType >( oldLabel ) << " -> ";
std::cout << static_cast< LabelPrintType >( newLabel ) << std::endl;
changeFilter->SetChange( oldLabel, newLabel );
}
itk::SimpleFilterWatcher watcher6(changeFilter, "filter");
typedef itk::LabelMapToLabelImageFilter< LabelMapType, ImageType> L2IType;
L2IType::Pointer l2i = L2IType::New();
l2i->SetInput( changeFilter->GetOutput() );
typedef itk::ImageFileWriter< ImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( l2i->GetOutput() );
writer->SetFileName( argv[2] );
writer->UseCompressionOn();
TRY_EXPECT_NO_EXCEPTION( writer->Update() );
std::cout << "GetNameOfClass() = " << changeFilter->GetNameOfClass() << std::endl;
changeFilter->Print( std::cout );
const ChangeLabelFilterType::ChangeMapType & mapOfLabel = changeFilter->GetChangeMap();
const unsigned int numberOfLabelsToReplace =
( numberOfArguments - numberOfArgumentsBeforeLabels ) / 2;
if( mapOfLabel.size() != numberOfLabelsToReplace )
{
std::cerr << "Error in SetChange() or in GetChangeMap() " << std::endl;
std::cerr << "numberOfLabelsToReplace = " << numberOfLabelsToReplace << std::endl;
std::cerr << "mapOfLabel.size() = " << mapOfLabel.size() << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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