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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkSampleToHistogramFilter.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 __itkSampleToHistogramFilter_h
#define __itkSampleToHistogramFilter_h
#include "itkMacro.h"
#include "itkProcessObject.h"
#include "itkMeasurementVectorTraits.h"
#include "itkSimpleDataObjectDecorator.h"
namespace itk {
namespace Statistics {
/** \class SampleToHistogramFilter
* \brief Computes the Histogram corresponding to a Sample.
*
* This filter produces as output the histogram corresponding to
* the values of a Sample.
*
* \sa Sample, Histogram
*
*/
template < class TSample, class THistogram >
class ITK_EXPORT SampleToHistogramFilter : public ProcessObject
{
public:
/** Standard class typedefs */
typedef SampleToHistogramFilter Self;
typedef ProcessObject Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer<const Self > ConstPointer;
/** Run-time type information (and related methods) */
itkTypeMacro(SampleToHistogramFilter, ProcessObject);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** MeasurementVector typedef support */
typedef TSample SampleType;
typedef THistogram HistogramType;
typedef typename SampleType::MeasurementVectorType MeasurementVectorType;
typedef typename MeasurementVectorType::ValueType MeasurementType;
typedef typename HistogramType::SizeType HistogramSizeType;
typedef typename HistogramType::MeasurementType HistogramMeasurementType;
typedef typename HistogramType::MeasurementVectorType HistogramMeasurementVectorType;
/** Type for the data object output */
itkSuperclassTraitMacro( DataObjectPointer )
/** Set/Get the input sample */
virtual void SetInput( const SampleType * sample );
virtual const SampleType * GetInput() const;
/** Get the output Histogram */
const HistogramType * GetOutput() const;
/** Type of DataObjects to use for Size inputs */
typedef SimpleDataObjectDecorator<
HistogramSizeType > InputHistogramSizeObjectType;
/** Type of DataObjects to use for Marginal Scale inputs */
typedef SimpleDataObjectDecorator<
HistogramMeasurementType > InputHistogramMeasurementObjectType;
/** Type of DataObjects to use for Minimum and Maximums values of the
* histogram bins. */
typedef SimpleDataObjectDecorator<
HistogramMeasurementVectorType > InputHistogramMeasurementVectorObjectType;
/** Type of DataObjects to use for AutoMinimumMaximum input */
typedef SimpleDataObjectDecorator< bool > InputBooleanObjectType;
/** Methods for setting and getting the histogram size. The histogram size
* is encapsulated inside a decorator class. For this reason, it is possible
* to set and get the decorator class, but it is only possible to set the
* histogram size by value. This macro declares the methods
* SetHistogramSize(), SetHistogramSizeInput(), GetHistogramSizeInput().
*/
itkSetDecoratedInputMacro( HistogramSize, HistogramSizeType, 1 );
/** Methods for setting and getting the Marginal scale value. The marginal
* scale is used when the type of the measurement vector componets are of
* integer type. */
itkSetDecoratedInputMacro( MarginalScale, HistogramMeasurementType, 2 );
/** Methods for setting and getting the Minimum and Maximum values of the
* histogram bins. */
itkSetDecoratedInputMacro( HistogramBinMinimum, HistogramMeasurementVectorType, 3 );
itkSetDecoratedInputMacro( HistogramBinMaximum, HistogramMeasurementVectorType, 4 );
/** Methods for setting and getting the boolean flag that defines whether the
* minimum and maximum of the histogram are going to be computed
* automatically from the values of the sample */
itkSetDecoratedInputMacro( AutoMinimumMaximum, bool, 5 );
/** Method that facilitates the use of this filter in the internal
* pipeline of another filter. */
virtual void GraftOutput(DataObject *output);
protected:
SampleToHistogramFilter();
virtual ~SampleToHistogramFilter();
void PrintSelf(std::ostream& os, Indent indent) const;
/** Make a DataObject of the correct type to used as the specified
* output. This method
* is automatically called when DataObject::DisconnectPipeline() is
* called.
* \sa ProcessObject
*/
virtual DataObjectPointer MakeOutput(unsigned int idx);
// Where the histogram is actually computed
virtual void GenerateData();
private:
SampleToHistogramFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSampleToHistogramFilter.txx"
#endif
#endif
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