svkMRSCombine.h

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/*
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/*
 *  $URL$
 *  $Rev$
 *  $Author$
 *  $Date$
 *
 *  Authors:
 *      Jason C. Crane, Ph.D.
 *      Beck Olson
 */


#ifndef SVK_MRS_COMBINE_H
#define SVK_MRS_COMBINE_H


#include <vtkObject.h>
#include <vtkObjectFactory.h>
#include <vtkInformation.h>
#include <vtkStreamingDemandDrivenPipeline.h>

#include <svkSpecUtils.h>
#include <svkImageInPlaceFilter.h>
#include <svkPhaseSpec.h>


namespace svk {


using namespace std;



class svkMRSCombine : public svkImageInPlaceFilter
{

    public:

        static svkMRSCombine* New();
        vtkTypeMacro( svkMRSCombine, svkImageInPlaceFilter);


        typedef enum {
            UNDEFINED_COMBINATION = 0,
            ADDITION,
            SUBTRACTION,
            SUM_OF_SQUARES,
            WEIGHTED_ADDITION
        } CombinationMethod;

        typedef enum {
            COIL = 0,
            TIME  
        } CombinationDimension;


        typedef enum {
            SPECTRA = 0,
            WEIGHTS = 1
        } PortName;



        void    SetCombinationMethod( CombinationMethod method);
        void    SetCombinationDimension( CombinationDimension dimension);


    protected:

        svkMRSCombine();
        ~svkMRSCombine();

        virtual int     FillInputPortInformation(int port, vtkInformation* info);


        //  Methods:
        virtual int     RequestInformation(
                            vtkInformation* request, 
                            vtkInformationVector** inputVector,
                            vtkInformationVector* outputVector
                        );
        virtual int     RequestData(
                            vtkInformation* request, 
                            vtkInformationVector** inputVector,
                            vtkInformationVector* outputVector
                        );


    private:

        void                    RedimensionData(); 
        void                    RequestLinearCombinationData(); 
        void                    RequestSumOfSquaresData(); 
        float                   GetTotalWeight( svkMriImageData* weightImage, int voxelID); 


        CombinationMethod       combinationMethod; 
        CombinationDimension    combinationDimension; 


};


}   //svk


#endif //SVK_MRS_COMBINE_H