svkCorrectDCOffset.h

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/*
 *  Copyright © 2009-2014 The Regents of the University of California.
 *  All Rights Reserved.
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 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions are met:
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 *      "The Regents of the University of California," or the names of any of its 
 *      contributors may be used to endorse or promote products derived from this 
 *      software without specific prior written permission.
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 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
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 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
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/*
 *  $URL$
 *  $Rev$
 *  $Author$
 *  $Date$
 *
 *  Authors:
 *      Jason C. Crane, Ph.D.
 *      Beck Olson
 */


#ifndef SVK_CORRECT_DC_OFFSET_H
#define SVK_CORRECT_DC_OFFSET_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 svkCorrectDCOffset : public svkImageInPlaceFilter
{

    public:

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


    protected:

        svkCorrectDCOffset();
        ~svkCorrectDCOffset();

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


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


    private: 
        bool            WasKSpacePtSampled( vtkFloatArray* spectrum, int numPts );
        void            CorrectDCOffset();


};


}   //svk


#endif //SVK_CORRECT_DC_OFFSET_H