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#ifndef GMMCLASSIFYIMAGEFILTER_H
#define GMMCLASSIFYIMAGEFILTER_H
#include "itkImageToImageFilter.h"
#include "GaussianMixtureModel.h"
/**
* @brief A class that takes multiple multi-component images and uses a
* Gaussian mixture model to combine them into a single probability map.
*/
template <class TInputImage, class TInputVectorImage, class TOutputImage>
class GMMClassifyImageFilter :
public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Pixel Type of the input image */
typedef TInputImage InputImageType;
typedef typename InputImageType::PixelType InputPixelType;
typedef typename InputImageType::InternalPixelType InputComponentType;
typedef typename InputImageType::RegionType InputImageRegionType;
/** Define the corresponding vector image */
typedef TInputVectorImage InputVectorImageType;
/** Pixel Type of the output image */
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::Pointer OutputImagePointer;
/** Standard class typedefs. */
typedef GMMClassifyImageFilter Self;
typedef itk::ImageSource<OutputImageType> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self)
/** Image dimension. */
itkStaticConstMacro(ImageDimension, unsigned int,
TInputImage::ImageDimension);
/** Add a scalar input image */
void AddScalarImage(InputImageType *image);
/** Add a vector (multi-component) input image */
void AddVectorImage(InputVectorImageType *image);
/** Set the mixture model */
void SetMixtureModel(GaussianMixtureModel *model);
/** We need to override this method because of multiple input types */
void GenerateInputRequestedRegion();
protected:
GMMClassifyImageFilter();
virtual ~GMMClassifyImageFilter();
void PrintSelf(std::ostream& os, itk::Indent indent) const;
void ThreadedGenerateData(const OutputImageRegionType &outputRegionForThread,
itk::ThreadIdType threadId);
GaussianMixtureModel *m_MixtureModel;
};
#ifndef ITK_MANUAL_INSTANTIATION
#include "GMMClassifyImageFilter.txx"
#endif
#endif // GMMCLASSIFYIMAGEFILTER_H
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