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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkRegionOfInterestImageFilterTest.cxx,v $
Language: C++
Date: $Date: 2006-02-21 22:29:52 $
Version: $Revision: 1.6 $
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 <iostream>
#include "itkOrientedImage.h"
#include "itkImageRegionIterator.h"
#include "itkRegionOfInterestImageFilter.h"
#include "itkSimpleFilterWatcher.h"
int itkRegionOfInterestImageFilterTest(int, char* [] )
{
const unsigned int Dimension = 3;
typedef itk::Index<Dimension> PixelType;
typedef itk::OrientedImage< PixelType,
Dimension > ImageType;
typedef itk::RegionOfInterestImageFilter<
ImageType,
ImageType > FilterType;
typedef ImageType::RegionType RegionType;
typedef ImageType::SizeType SizeType;
typedef ImageType::IndexType IndexType;
typedef ImageType::DirectionType DirectionType;
typedef itk::ImageRegionIterator<
ImageType > IteratorType;
FilterType::Pointer filter = FilterType::New();
ImageType::Pointer image = ImageType::New();
IndexType start;
start.Fill( 0 );
SizeType size;
size[0] = 40;
size[1] = 40;
size[2] = 40;
RegionType region;
region.SetIndex( start );
region.SetSize( size );
image->SetRegions( region );
image->Allocate();
DirectionType directions;
directions.SetIdentity();
directions[0][0] = 0.0;
directions[1][0] = 1.0;
directions[2][0] = 0.0;
directions[0][1] = 1.0;
directions[1][1] = 0.0;
directions[2][1] = 0.0;
image->SetDirection (directions);
// Fill the image pixels with their own index.
IteratorType intr( image, region );
intr.GoToBegin();
while( !intr.IsAtEnd() )
{
intr.Set( intr.GetIndex() );
++intr;
}
filter->SetInput( image );
SizeType roiSize;
roiSize[0] = 20;
roiSize[1] = 20;
roiSize[2] = 20;
IndexType roiStart;
roiStart[0] = 9;
roiStart[1] = 9;
roiStart[2] = 9;
RegionType regionOfInterest;
regionOfInterest.SetIndex( roiStart );
regionOfInterest.SetSize( roiSize );
itk::SimpleFilterWatcher watcher(filter);
filter->SetRegionOfInterest( regionOfInterest );
filter->Update();
filter->GetOutput()->Print(std::cout);
IteratorType ot( filter->GetOutput(),
filter->GetOutput()->GetLargestPossibleRegion() );
IteratorType it( image, regionOfInterest );
it.GoToBegin();
ot.GoToBegin();
bool passed = true;
while( !it.IsAtEnd() )
{
IndexType inIndex = it.Get();
IndexType outIndex = ot.Get();
if( inIndex[0] != outIndex[0] ||
inIndex[1] != outIndex[1] ||
inIndex[2] != outIndex[2] )
{
std::cerr << "Test failed at pixel " << inIndex << std::endl;
std::cerr << "pixel value is " << outIndex << std::endl;
passed = false;
break;
}
++it;
++ot;
}
if( !passed )
{
return EXIT_FAILURE;
}
std::cout << "Test PASSED !" << std::endl;
return EXIT_SUCCESS;
}
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