motion_stabilizing.hpp 3.57 KB
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#ifndef __OPENCV_VIDEOSTAB_MOTION_STABILIZING_HPP__
#define __OPENCV_VIDEOSTAB_MOTION_STABILIZING_HPP__
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#include <vector>
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#include "opencv2/core/core.hpp"
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namespace cv
{
namespace videostab
{

class CV_EXPORTS IMotionStabilizer
{
public:
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    virtual void stabilize(const Mat *motions, int size, Mat *stabilizationMotions) const = 0;
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#ifdef OPENCV_CAN_BREAK_BINARY_COMPATIBILITY
    virtual ~IMotionStabilizer() {}
#endif
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};

class CV_EXPORTS MotionFilterBase : public IMotionStabilizer
{
public:
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    MotionFilterBase() : radius_(0) {}
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    virtual ~MotionFilterBase() {}

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    virtual void setRadius(int val) { radius_ = val; }
    virtual int radius() const { return radius_; }
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    virtual void update() {}
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    virtual Mat stabilize(int index, const Mat *motions, int size) const = 0;
    virtual void stabilize(const Mat *motions, int size, Mat *stabilizationMotions) const;
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protected:
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    int radius_;
};

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class CV_EXPORTS GaussianMotionFilter : public MotionFilterBase
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{
public:
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    GaussianMotionFilter() : stdev_(-1.f) {}
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    void setStdev(float val) { stdev_ = val; }
    float stdev() const { return stdev_; }
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    virtual void update();
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    virtual Mat stabilize(int index, const Mat *motions, int size) const;
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private:
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    float stdev_;
    std::vector<float> weight_;
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};

CV_EXPORTS Mat ensureInclusionConstraint(const Mat &M, Size size, float trimRatio);

CV_EXPORTS float estimateOptimalTrimRatio(const Mat &M, Size size);

} // namespace videostab
} // namespace

#endif