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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkGradientImageToBloxBoundaryPointImageFilter.h,v $
Language: C++
Date: $Date: 2003-09-10 14:28:48 $
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.
=========================================================================*/
#ifndef __itkGradientImageToBloxBoundaryPointImageFilter_h
#define __itkGradientImageToBloxBoundaryPointImageFilter_h
#include "itkBloxBoundaryPointImage.h"
#include "itkImageToImageFilter.h"
#include "itkSize.h"
namespace itk
{
/** \class GradientImageToBloxBoundaryPointImageFilter
* \brief Converts a gradient image to an BloxImage of BloxBoundaryPoints
*
* Thresholds the magnitude of a gradient image to produce
* a BloxBoundaryPointImage
*
* \ingroup ImageEnhancement
*/
template<typename TInputImage>
class ITK_EXPORT GradientImageToBloxBoundaryPointImageFilter :
public ImageToImageFilter<TInputImage, BloxBoundaryPointImage< ::itk::GetImageDimension<TInputImage>::ImageDimension> >
{
public:
/** Number of dimensions */
itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);
/** Standard class typedefs. */
typedef GradientImageToBloxBoundaryPointImageFilter Self;
typedef ImageToImageFilter<TInputImage,
BloxBoundaryPointImage<itkGetStaticConstMacro(NDimensions)> > 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( GradientImageToBloxBoundaryPointImageFilter, ImageToImageFilter );
/** typedef for images */
typedef TInputImage InputImageType;
typedef BloxBoundaryPointImage<itkGetStaticConstMacro(NDimensions)> TOutputImage;
typedef BloxBoundaryPointImage<itkGetStaticConstMacro(NDimensions)> OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
/** Image size typedef */
typedef Size<itkGetStaticConstMacro(NDimensions)> SizeType;
/** Image index typedef */
typedef typename TOutputImage::IndexType IndexType;
/** Image pixel value typedef */
typedef typename TOutputImage::PixelType PixelType;
/** Typedef to describe the output image region type. */
typedef typename TOutputImage::RegionType OutputImageRegionType;
/** The type of vector used to convert between physical and blox space */
typedef Point<double, itkGetStaticConstMacro(NDimensions)> TPositionType;
/** Get and set the number of times to repeat the filter. */
itkSetMacro(Threshold, double);
itkGetMacro(Threshold, double);
/** Get and set the resolution of the blox
* This is the number of input pixels "contained" within
* each blox pixel
*/
void SetBloxResolution( float bloxResolution[] );
void SetBloxResolution( float bloxResolution );
void GenerateInputRequestedRegion();
virtual void GenerateOutputInformation();
protected:
GradientImageToBloxBoundaryPointImageFilter();
virtual ~GradientImageToBloxBoundaryPointImageFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** Method for forming the BloxBoundaryPointImage. */
void GenerateData();
private:
GradientImageToBloxBoundaryPointImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** The threshold used to decide whether or not a gradient indicates
* a boundary point that should be included */
double m_Threshold;
/** The resolution of the blox in each dimension */
float m_BloxResolution[NDimensions];
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkGradientImageToBloxBoundaryPointImageFilter.txx"
#endif
#endif
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