blobtracker.h

guide and some example with visualC++

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// ////////////////////////////////////////////////////////////////////////////
// BlobTracker.h 
// ////////////////////////////////////////////////////////////////////////////

#ifndef BLOBTRACKER_H
#define BLOBTRACKER_H

#include "ITracker.h"
#include "IBlobTracker.h"

// ////////////////////////////////////////////////////////////////////////////
//
// BlobTracker
//
// Definition of the tracker class.
//
// ////////////////////////////////////////////////////////////////////////////

class BlobTrackerObjectList;

class BlobTracker : ITracker, IBlobTracker, CUnknown
{
    // image format
    IplImage m_image_format;

    int m_num_objects;
    int m_output_options;
    int m_pixel_threshold;
    int m_size_threshold;
    int m_distance_threshold;

    IplImage *m_image;
    IplImage *m_tmp_image;

    BlobTrackerObjectList *m_objects;

    void FindObjects(BlobTrackerObjectList &objects);

    // BlobTrkOut.cpp
    void FillDestinationData(IplImage *image);
    void DrawCross(IplImage *image, CvPoint point, double color);

    BlobTracker(IUnknown *outer, HRESULT *phr);
    ~BlobTracker();

public:
    static CUnknown * WINAPI CreateInstance(IUnknown *outer, HRESULT *phr);

    DECLARE_IUNKNOWN;
    STDMETHODIMP NonDelegatingQueryInterface(REFIID iid, void **ppv);

    // ITracker methods
    STDMETHODIMP CheckFormat(IplImage *image_header);
    STDMETHODIMP SetFormat(IplImage *image_header);
    STDMETHODIMP Process(IplImage *image);
    STDMETHODIMP GetTrackedObjects(ITracker::TrackingInfo &tracked_objects);
    STDMETHODIMP GetPropertyPage(GUID *page);

    // IBlobTracker methods
    STDMETHODIMP GetNumberOfObjects(int &num_objects) { num_objects = m_num_objects; return NOERROR; };
    STDMETHODIMP SetNumberOfObjects(int num_objects);
    STDMETHODIMP GetPixelThreshold(int &threshold) { threshold = m_pixel_threshold; return NOERROR; };
    STDMETHODIMP SetPixelThreshold(int threshold) { m_pixel_threshold = threshold; return NOERROR; };
    STDMETHODIMP GetSizeThreshold(int &threshold) { threshold = m_size_threshold; return NOERROR; };
    STDMETHODIMP SetSizeThreshold(int threshold) { m_size_threshold = threshold; return NOERROR; };
    STDMETHODIMP GetOutputOptions(int &options) { options = m_output_options; return NOERROR; };
    STDMETHODIMP SetOutputOptions(int options) { m_output_options = options; return NOERROR; };
};

#endif // BLOBTRACKER_H