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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkGrayscaleDilateImageFilter.txx
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.
=========================================================================*/
#ifndef __itkGrayscaleDilateImageFilter_txx
#define __itkGrayscaleDilateImageFilter_txx
// First make sure that the configuration is available.
// This line can be removed once the optimized versions
// gets integrated into the main directories.
#include "itkConfigure.h"
#ifdef ITK_USE_CONSOLIDATED_MORPHOLOGY
#include "itkOptGrayscaleDilateImageFilter.txx"
#else
#include "itkGrayscaleDilateImageFilter.h"
namespace itk {
template<class TInputImage, class TOutputImage, class TKernel>
GrayscaleDilateImageFilter<TInputImage, TOutputImage, TKernel>
::GrayscaleDilateImageFilter()
{
m_DilateBoundaryCondition.SetConstant( NumericTraits<PixelType>::NonpositiveMin() );
this->OverrideBoundaryCondition( &m_DilateBoundaryCondition );
}
template<class TInputImage, class TOutputImage, class TKernel>
typename GrayscaleDilateImageFilter<TInputImage, TOutputImage, TKernel>::PixelType
GrayscaleDilateImageFilter<TInputImage, TOutputImage, TKernel>
::Evaluate(const NeighborhoodIteratorType &nit,
const KernelIteratorType kernelBegin,
const KernelIteratorType kernelEnd)
{
unsigned int i;
PixelType max = NumericTraits<PixelType>::NonpositiveMin();
PixelType temp;
KernelIteratorType kernel_it;
for( i=0, kernel_it=kernelBegin; kernel_it<kernelEnd; ++kernel_it, ++i )
{
// if structuring element is positive, use the pixel under that element
// in the image
if( *kernel_it > NumericTraits<KernelPixelType>::Zero )
{
// note we use GetPixel() on the SmartNeighborhoodIterator to
// respect boundary conditions
temp = nit.GetPixel(i);
if( temp > max )
{
max = temp;
}
}
}
return max;
}
}// end namespace itk
#endif
#endif
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