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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkBinaryMaskToNarrowBandPointSetFilterTest.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.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include "itkBinaryMaskToNarrowBandPointSetFilter.h"
#include "itkPointSet.h"
#include "itkImageRegionIterator.h"
int itkBinaryMaskToNarrowBandPointSetFilterTest(int , char *[] )
{
const unsigned int Dimension = 2;
typedef unsigned char BinaryMaskPixelType;
typedef itk::Image<
BinaryMaskPixelType,
Dimension > BinaryMaskImageType;
//
// Initialize an image with a white square in a black background
//
BinaryMaskImageType::Pointer binaryMask = BinaryMaskImageType::New();
BinaryMaskImageType::SizeType size;
BinaryMaskImageType::IndexType index;
BinaryMaskImageType::RegionType region;
size[0] = 100;
size[1] = 100;
index[0] = 0;
index[1] = 0;
region.SetIndex( index );
region.SetSize( size );
binaryMask->SetRegions( region );
binaryMask->Allocate();
binaryMask->FillBuffer( 0 );
size[0] = 60;
size[1] = 60;
index[0] = 20;
index[1] = 20;
region.SetIndex( index );
region.SetSize( size );
itk::ImageRegionIterator< BinaryMaskImageType > it( binaryMask, region );
it.GoToBegin();
while( !it.IsAtEnd() )
{
it.Set( 255 );
++it;
}
//
// Set up the filter
//
typedef itk::PointSet< float, Dimension > PointSetType;
typedef itk::BinaryMaskToNarrowBandPointSetFilter<
BinaryMaskImageType,
PointSetType
> GeneratorType;
GeneratorType::Pointer narrowBandGenerator = GeneratorType::New();
narrowBandGenerator->SetInput( binaryMask );
try
{
narrowBandGenerator->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Exception thrown during the excecution of the generator " << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
//
// Checking the output
//
typedef PointSetType::PointType PointType;
typedef PointSetType::PointsContainer PointsContainer;
typedef PointsContainer::Pointer PointsContainerPointer;
typedef PointsContainer::ConstIterator PointsIterator;
typedef PointSetType::PointDataContainer PointDataContainer;
typedef PointDataContainer::Pointer PointDataContainerPointer;
typedef PointDataContainer::ConstIterator PointDataIterator;
PointSetType::Pointer pointSet = narrowBandGenerator->GetOutput();
PointsContainerPointer points = pointSet->GetPoints();
PointDataContainerPointer pointData = pointSet->GetPointData();
PointsIterator point = points->Begin();
PointsIterator lastPoint = points->End();
PointDataIterator data = pointData->Begin();
PointDataIterator lastData = pointData->End();
while( point != lastPoint && data != lastData )
{
const PointType & p = point.Value();
binaryMask->TransformPhysicalPointToIndex( p, index );
if( ( !binaryMask->GetPixel( index ) && data.Value() > 0 ) ||
( binaryMask->GetPixel( index ) && data.Value() < 0 ) )
{
std::cerr << "Pixel " << index << " shouldn't be in the narrow band" << std::endl;
return EXIT_FAILURE;
}
++point;
++data;
}
return EXIT_SUCCESS;
}
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