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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkShapedFloodFilledImageFunctionConditionalConstIteratorTest2.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.
=========================================================================*/
// Test itk::ShapedFloodFilledImageFunctionConditionalConstIterator on a 2D
// image using 4 connectivity.
#include "itkBinaryThresholdImageFunction.h"
#include "itkImageLinearIteratorWithIndex.h"
#include "itkFloodFilledImageFunctionConditionalConstIterator.h"
#include "itkShapedFloodFilledImageFunctionConditionalConstIterator.h"
int itkShapedFloodFilledImageFunctionConditionalConstIteratorTest2( int, char * [] )
{
try
{
const unsigned int ImageDimension = 2;
typedef unsigned char PixelType;
typedef itk::Image<PixelType, ImageDimension> ImageType;
typedef ImageType::RegionType RegionType;
typedef ImageType::IndexType IndexType;
typedef itk::BinaryThresholdImageFunction<ImageType> FunctionType;
typedef itk::FloodFilledImageFunctionConditionalConstIterator<
ImageType, FunctionType> FloodFilledIteratorType;
typedef itk::ShapedFloodFilledImageFunctionConditionalConstIterator<
ImageType, FunctionType> ShapedFloodFilledIteratorType;
std::vector<IndexType> seedList;
RegionType region;
region.SetSize(0, 128);
region.SetSize(1, 128);
region.SetIndex(0, 0);
region.SetIndex(1, 0);
ImageType::Pointer inputImage = ImageType::New();
inputImage->SetRegions(region);
inputImage->Allocate();
inputImage->FillBuffer(0);
itk::ImageLinearIteratorWithIndex<ImageType> it( inputImage, region );
// make sure that we create a 4-connected image!
for( unsigned int dir = 0; dir < ImageDimension; ++dir )
{
it.SetDirection(dir);
it.GoToBegin();
while (!it.IsAtEnd())
{
while (!it.IsAtEndOfLine())
{
// add a seed
if( seedList.empty() )
{
seedList.push_back(it.GetIndex());
}
it.Set(255);
++it;
}
// and jump over every
it.NextLine();
if (!it.IsAtEnd())
{
it.NextLine();
}
if (!it.IsAtEnd())
{
it.NextLine();
}
}
}
FunctionType::Pointer function = FunctionType::New();
function->SetInputImage ( inputImage );
function->ThresholdAbove ( 1 ); // >= 1
FloodFilledIteratorType floodIt(inputImage, function, seedList);
ShapedFloodFilledIteratorType shapedFloodIt(inputImage, function, seedList);
shapedFloodIt.SetFullyConnected(false); // 4-connected, default
for (unsigned short i = 1; !floodIt.IsAtEnd(); ++floodIt,
++shapedFloodIt,
++i)
{
if (floodIt.GetIndex() != shapedFloodIt.GetIndex())
{
return EXIT_FAILURE;
}
}
if (!floodIt.IsAtEnd() || !shapedFloodIt.IsAtEnd())
{
return EXIT_FAILURE;
}
}
catch (itk::ExceptionObject& e)
{
e.Print(std::cerr);
return EXIT_FAILURE;
}
catch (...)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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