camshiftf.h

微软的基于HMM的人脸识别原代码, 非常经典的说

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#pragma once

#include "CV.hpp"

class CCamShiftF : public CTransformFilter,
            public ICamShift,
            public ISpecifyPropertyPages
{

public:

    static CUnknown * WINAPI CreateInstance(LPUNKNOWN punk, HRESULT *phr);

    // Reveals ICamShift & ISpecifyPropertyPages
    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void ** ppv);

    DECLARE_IUNKNOWN;

    HRESULT Transform(IMediaSample *pIn, IMediaSample *pOut);
    HRESULT CheckInputType(const CMediaType *mtIn);
    HRESULT CheckTransform(const CMediaType *mtIn,const CMediaType *mtOut);
    HRESULT GetMediaType(int iPosition, CMediaType *pMediaType);
    HRESULT DecideBufferSize(IMemAllocator *pAlloc,
                             ALLOCATOR_PROPERTIES *pProperties);

    // ICamShift methods

    STDMETHODIMP SetParams( CvCamShiftParams* params );
    STDMETHODIMP GetParams( CvCamShiftParams* params );

    STDMETHODIMP StartTracking();
    STDMETHODIMP StopTracking();

    // ISpecifyPropertyPages method

    STDMETHODIMP GetPages(CAUUID *pPages);

private:

    // Constructor
    CCamShiftF(TCHAR *tszName, LPUNKNOWN punk, HRESULT *phr);
    void  CheckBackProject( CvImage* image );
    void  ApplyCamShift( CvImage* image, bool initialize );
    void  DrawCross( CvImage* image );

    // Look after the transformation of media samples
    BOOL CanChangeCamShiftLevel(const CMediaType *pMediaType) const;
    HRESULT Copy(IMediaSample *pSource, IMediaSample *pDest) const;
    HRESULT Transform(IMediaSample *pMediaSample);

    // Non interface locking critical section
    CCritSec m_CamShiftLock;
    CvCamShiftTracker m_cCamShift;
    CvCamShiftParams m_params;

    CvRect m_object;
    bool IsTracking;
    bool IsInit;

}; // CCamShift


/* End of file. */