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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkShapedFloodFilledImageFunctionConditionalConstIteratorTest1.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 the fully connected option.
#include "itkImageFileReader.h"
#include "itkBinaryThresholdImageFunction.h"
#include "itkImageLinearIteratorWithIndex.h"
#include "itkFloodFilledImageFunctionConditionalConstIterator.h"
#include "itkShapedFloodFilledImageFunctionConditionalConstIterator.h"
int itkShapedFloodFilledImageFunctionConditionalConstIteratorTest1(int argc, char *argv [] )
{
if( argc < 2 )
{
std::cerr << "Error: missing arguments" << std::endl;
std::cerr << argv[0] << " filename " << std::endl;
return EXIT_FAILURE;
}
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::ShapedFloodFilledImageFunctionConditionalConstIterator<
ImageType, FunctionType> ShapedFloodFilledIteratorType;
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
reader->Update();
IndexType index;
index[0] = 29;
index[1] = 47;
std::vector<IndexType> seedList;
seedList.push_back(index);
RegionType region = reader->GetOutput()->GetBufferedRegion();
FunctionType::Pointer function = FunctionType::New();
function->SetInputImage ( reader->GetOutput() );
function->ThresholdAbove ( 1 ); // >= 1
ShapedFloodFilledIteratorType shapedFloodIt(
reader->GetOutput(), function, seedList);
shapedFloodIt.SetFullyConnected(true); // 8-connected, default
ImageType::Pointer visitedImage = ImageType::New();
visitedImage->SetRegions(region);
visitedImage->Allocate();
visitedImage->FillBuffer(0);
for (; !shapedFloodIt.IsAtEnd(); ++shapedFloodIt)
{
visitedImage->SetPixel( shapedFloodIt.GetIndex(), 255);
}
typedef itk::ImageRegionConstIterator<ImageType> ConstIteratorType;
ConstIteratorType inIt(reader->GetOutput(), region);
ConstIteratorType outIt(visitedImage, region);
for (; !inIt.IsAtEnd(); ++inIt, ++outIt)
{
if (inIt.Get() != outIt.Get())
{
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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