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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkMaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator.h,v $
Language: C++
Date: $Date: 2009-05-20 16:21:47 $
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 __itkMaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator_h
#define __itkMaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator_h
#include "itkScalarImageToGreyLevelCooccurrenceMatrixGenerator.h"
#include "itkMacro.h"
namespace itk {
namespace Statistics {
/** \class MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator
* \brief This class computes a grey-level co-occurence matrix (histogram) from
* a given image and mask. GLCM's are used for image texture description.
*
* For details about the general method, see the documentation for the
* ScalarImageToGreyLevelCooccurrenceMatrixGenerator class.
*
* This class differs in that a mask may be set. The GLCM will only be populated
* with co-occurence measurements where both the pixel in question and the
* offset pixel both fall in the masked region. The mask must be the same size
* as the input image.
*
* If no mask is set, the behavior is exactly the same as the
* ScalarImageToGreyLevelCooccurrenceMatrixGenerator class.
*
* \sa ScalarImageToGreyLevelCooccurrenceMatrixGenerator
* \sa GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator
* \sa ScalarImageTextureCalculator
*
* Author: Zachary Pincus
*/
template< class TImageType,
class THistogramFrequencyContainer = DenseFrequencyContainer >
class MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator :
public ScalarImageToGreyLevelCooccurrenceMatrixGenerator< TImageType,
THistogramFrequencyContainer >
{
public:
/** Standard typedefs */
typedef MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator Self;
typedef ScalarImageToGreyLevelCooccurrenceMatrixGenerator< TImageType,
THistogramFrequencyContainer > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator, Object);
/** standard New() method support */
itkNewMacro(Self);
typedef TImageType ImageType;
typedef typename ImageType::Pointer ImagePointer;
typedef typename ImageType::ConstPointer ImageConstPointer;
typedef typename ImageType::PixelType PixelType;
typedef typename ImageType::RegionType RegionType;
typedef typename ImageType::SizeType RadiusType;
typedef typename ImageType::OffsetType OffsetType;
typedef VectorContainer<unsigned char, OffsetType> OffsetVector;
typedef typename OffsetVector::Pointer OffsetVectorPointer;
typedef typename OffsetVector::ConstPointer OffsetVectorConstPointer;
typedef typename NumericTraits<PixelType>::RealType MeasurementType;
typedef Histogram< MeasurementType, 2, THistogramFrequencyContainer >
HistogramType;
typedef typename HistogramType::Pointer HistogramPointer;
typedef typename HistogramType::ConstPointer HistogramConstPointer;
typedef typename HistogramType::MeasurementVectorType MeasurementVectorType;
/** Connects the mask image for which the histogram is going to be computed */
itkSetConstObjectMacro( ImageMask, ImageType );
itkGetConstObjectMacro( ImageMask, ImageType );
/** Set the pixel value of the mask that should be considered "inside" the
object. Defaults to one. */
itkSetMacro( InsidePixelValue, PixelType );
itkGetMacro( InsidePixelValue, PixelType );
protected:
MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator();
virtual ~MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator() {};
void PrintSelf(std::ostream& os, Indent indent) const;
void FillHistogram( RadiusType radius, RegionType region );
private:
MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
ImageConstPointer m_ImageMask;
PixelType m_InsidePixelValue;
};
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator.txx"
#endif
#endif
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