ImageMapper.h

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// ****************************************************************************
// This file is part of the Integrating Vision Toolkit (IVT).
//
// The IVT is maintained by the Karlsruhe Institute of Technology (KIT)
// (www.kit.edu) in cooperation with the company Keyetech (www.keyetech.de).
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// ****************************************************************************
// ****************************************************************************
// Filename:  ImageMapper.h
// Author:    Pedram Azad
// Date:      04.10.2008
// ****************************************************************************

#ifndef _IMAGE_MAPPER_H_
#define _IMAGE_MAPPER_H_


// ****************************************************************************
// Forward declarations
// ****************************************************************************

class CByteImage;
struct Vec2d;



// ****************************************************************************
// CImageMapper
// ****************************************************************************

class CImageMapper
{
public:
        CImageMapper(bool bInterpolate = true);

        virtual ~CImageMapper();


        void ComputeMap(int width, int height);

        void PerformMapping(const CByteImage *pInputImage, CByteImage *pOutputImage);
        
        
private:
        struct MapCoordinates
        {
                int f00, f01, f10, f11;
        };

        // pure virtual method
        virtual void ComputeOriginalCoordinates(const Vec2d &newCoordinates, Vec2d &originalCoordinates) = 0;
        

        // private attributes
        int width, height; // image size

        // precomputed maps
        int *m_pOffsetMap;
        MapCoordinates *m_pCoordinateMap;

        // flags
        bool m_bInterpolate;
        bool m_bMapComputed;
};



#endif /* _IMAGE_MAPPER_H_ */