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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkImageToHistogramGenerator.h,v $
Language: C++
Date: $Date: 2009-03-04 15:23:50 $
Version: $Revision: 1.8 $
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 __itkImageToHistogramGenerator_h
#define __itkImageToHistogramGenerator_h
#include "itkImageToListAdaptor.h"
#include "itkListSampleToHistogramGenerator.h"
#include "itkObject.h"
namespace itk {
namespace Statistics {
template <typename TAdaptor >
struct GetAdaptorMeasurementVectorLength
{
itkStaticConstMacro( MeasurementVectorLength, unsigned int, TAdaptor::MeasurementVectorSize );
};
/** \class ImageToHistogramGenerator
* \brief This class generates an histogram from an image.
*
* The concept of Histogram in ITK is quite generic. It has been designed to
* manage multiple components data. This class facilitates the computation of
* an histogram from an image. Internally it creates a List that is feed into
* the ListSampleToHistogramGenerator.
*
*/
template< class TImageType >
class ImageToHistogramGenerator : public Object
{
public:
/** Standard typedefs */
typedef ImageToHistogramGenerator Self;
typedef Object Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(ImageToHistogramGenerator, Object);
/** standard New() method support */
itkNewMacro(Self);
typedef TImageType ImageType;
typedef ImageToListAdaptor< ImageType > AdaptorType;
typedef typename AdaptorType::Pointer AdaptorPointer;
typedef typename ImageType::PixelType PixelType;
typedef typename PixelType::ValueType ValueType;
typedef typename NumericTraits< ValueType >::RealType ValueRealType;
typedef DenseFrequencyContainer FrequencyContainerType;
typedef ListSampleToHistogramGenerator<
AdaptorType,
ValueRealType,
FrequencyContainerType,
::itk::Statistics::GetAdaptorMeasurementVectorLength<
AdaptorType >::MeasurementVectorLength
> GeneratorType;
typedef typename GeneratorType::Pointer GeneratorPointer;
typedef typename GeneratorType::HistogramType HistogramType;
typedef typename HistogramType::Pointer HistogramPointer;
typedef typename HistogramType::ConstPointer HistogramConstPointer;
typedef typename HistogramType::SizeType SizeType;
typedef typename HistogramType::MeasurementVectorType MeasurementVectorType;
public:
/** Triggers the Computation of the histogram */
void Compute( void );
/** Connects the input image for which the histogram is going to be computed */
void SetInput( const ImageType * );
/** Return the histogram. o
\warning This output is only valid after the Compute() method has been invoked
\sa Compute */
const HistogramType * GetOutput() const;
/** Set number of histogram bins */
void SetNumberOfBins( const SizeType & size );
/** Set marginal scale value to be passed to the histogram generator */
void SetMarginalScale( double marginalScale );
void SetHistogramMin(const MeasurementVectorType & histogramMin);
void SetHistogramMax(const MeasurementVectorType & histogramMax);
void SetAutoMinMax(bool autoMinMax);
protected:
ImageToHistogramGenerator();
virtual ~ImageToHistogramGenerator() {};
void PrintSelf(std::ostream& os, Indent indent) const;
private:
AdaptorPointer m_ImageToListAdaptor;
GeneratorPointer m_HistogramGenerator;
};
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkImageToHistogramGenerator.txx"
#endif
#endif
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