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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkMembershipSampleGenerator.h,v $
Language: C++
Date: $Date: 2009-03-04 15:24:02 $
Version: $Revision: 1.12 $
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 __itkMembershipSampleGenerator_h
#define __itkMembershipSampleGenerator_h
#include "itkObject.h"
#include "itkMembershipSample.h"
namespace itk {
namespace Statistics {
/** \class MembershipSampleGenerator
* \brief MembershipSampleGenerator generates a MembershipSample object
* using a class mask sample.
*
* You can see it as a filter that takes two samples as input and generates
* a MembershipSample. There are two class template arguments first one
* is the type of basic sample that has measurement vectors in it, and
* the second one is the type of sample that its measurement vectors has
* only one component - class label. What it does is that it merges
* measurement vectors and class labels in a single MembershipSample
* object.
*
* To get the MembershipSample object you should plug in the input sample
* and the class mask sample using SetInput and SetClassMask methods
* respectively.
*
* NOTE: This generator expects the class labels in the class mask sample
* to be integer value where the value starts 0 and increases without
* any missing value between 0 to the last class label value.
*
* \sa MembershipSample
*/
template< class TInputSample, class TClassMaskSample >
class ITK_EXPORT MembershipSampleGenerator :
public Object
{
public:
/** Standard class typedefs. */
typedef MembershipSampleGenerator Self;
typedef Object Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Standard Macros */
itkTypeMacro(MembershipSampleGenerator, Object);
itkNewMacro(Self);
/** Input sample types alias */
typedef typename TInputSample::MeasurementVectorType MeasurementVectorType;
/** Output: MembershipSample types */
typedef MembershipSample< TInputSample > OutputType;
typedef typename OutputType::Pointer OutputPointer;
/** Stores the input sample */
void SetInput(const TInputSample* sample);
/** Returns the input sample pointer */
const TInputSample* GetInput() const;
/** Stores the class mask sample */
void SetClassMask(const TClassMaskSample* classMask);
/** Returns the class mask sample pointer */
const TClassMaskSample* GetClassMask() const;
void SetNumberOfClasses(int numberOfClasses);
int GetNumberOfClasses();
/** Returns the pointer to the MembershipSample object
* that has been generated by this */
const OutputType * GetOutput() const;
/** The actual output generation procedure. */
void GenerateData();
protected:
MembershipSampleGenerator();
virtual ~MembershipSampleGenerator() {}
void PrintSelf(std::ostream& os, Indent indent) const;
private:
typename TInputSample::ConstPointer m_Input;
typename TClassMaskSample::ConstPointer m_ClassMask;
int m_NumberOfClasses;
OutputPointer m_Output;
}; // end of class
} // end namespace Statistics
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMembershipSampleGenerator.txx"
#endif
#endif
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