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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkOptSimpleContourExtractorImageFilter.h
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 __itkOptSimpleContourExtractorImageFilter_h
#define __itkOptSimpleContourExtractorImageFilter_h
#include "itkBoxImageFilter.h"
#include "itkImage.h"
#include "itkNumericTraits.h"
namespace itk
{
/** \class SimpleContourExtractorImageFilter
* \brief Computes an image of contours from
*
* Computes an image which will be the contour of the first image. A
* pixel of the source image is considered to belong to the contour,
* if its pixel value is equal to the input Foreground value and it
* has in its neighborhood at least one pixel which its pixel value is
* equal to the input background value. The output image will have
* pixels which will be set to the output foreground value if they
* belong to the contour, otherwise they will be set to the ouput
* background value.
* The neighborhood "radius" is set thanks to the radius params.
*
* \sa Image
* \sa Neighborhood
* \sa NeighborhoodOperator
* \sa NeighborhoodIterator
*
* \ingroup IntensityImageFilters
*/
template <class TInputImage, class TOutputImage>
class ITK_EXPORT SimpleContourExtractorImageFilter :
public BoxImageFilter< TInputImage, TOutputImage >
{
public:
/** Extract dimension from input and output image. */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
/** Convenient typedefs for simplifying declarations. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
/** Standard class typedefs. */
typedef SimpleContourExtractorImageFilter Self;
typedef BoxImageFilter< InputImageType, OutputImageType> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(SimpleContourExtractorImageFilter, ImageToImageFilter);
/** Image typedef support. */
typedef typename InputImageType::PixelType InputPixelType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename NumericTraits<InputPixelType>::RealType InputRealType;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename InputImageType::SizeType InputSizeType;
/** Set the foreground value used in order to identify a foreground
* pixel in the input image. */
itkSetMacro(InputForegroundValue, InputPixelType);
/** Get the foreground value used in order to identify a foreground
* pixel in the input image. */
itkGetConstReferenceMacro(InputForegroundValue, InputPixelType);
/** Set the background value used in order to identify a background
* pixel in the input image. */
itkSetMacro(InputBackgroundValue, InputPixelType);
/** Get the background value used in order to identify a background
* pixel in the input image. */
itkGetConstReferenceMacro(InputBackgroundValue, InputPixelType);
/** Set the foreground value used in order to identify a foreground
* pixel in the output image. */
itkSetMacro(OutputForegroundValue, OutputPixelType);
/** Get the foreground value used in order to identify a foreground
* pixel in the output image. */
itkGetConstReferenceMacro(OutputForegroundValue, OutputPixelType);
/** Set the background value used in order to identify a background
* pixel in the output image. */
itkSetMacro(OutputBackgroundValue, OutputPixelType);
/** Get the background value used in order to identify a background
* pixel in the output image. */
itkGetConstReferenceMacro(OutputBackgroundValue, OutputPixelType);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputHasNumericTraitsCheck,
(Concept::HasNumericTraits<InputPixelType>));
itkConceptMacro(OutputHasNumericTraitsCheck,
(Concept::HasNumericTraits<OutputPixelType>));
/** End concept checking */
#endif
protected:
SimpleContourExtractorImageFilter();
virtual ~SimpleContourExtractorImageFilter() {}
void PrintSelf(std::ostream& os, Indent indent) const;
/** SimpleContourExtractorImageFilter can be implemented as a
* multithreaded filter. Therefore, this implementation provides a
* ThreadedGenerateData() routine which is called for each
* processing thread. The output image data is allocated
* automatically by the superclass prior to calling
* ThreadedGenerateData(). ThreadedGenerateData can only write to
* the portion of the output image specified by the parameter
* "outputRegionForThread"
*
* \sa ImageToImageFilter::ThreadedGenerateData(),
* ImageToImageFilter::GenerateData() */
void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
int threadId );
private:
SimpleContourExtractorImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
InputPixelType m_InputForegroundValue;
InputPixelType m_InputBackgroundValue;
OutputPixelType m_OutputForegroundValue;
OutputPixelType m_OutputBackgroundValue;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkOptSimpleContourExtractorImageFilter.txx"
#endif
#endif
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