libopencv-contrib-dev 3.2.0+dfsg-4build2 / usr / include / opencv2 / phase_unwrapping / histogramphaseunwrapping.hpp

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/*M///////////////////////////////////////////////////////////////////////////////////////
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#ifndef __OPENCV_HISTOGRAM_PHASE_UNWRAPPING_HPP__
#define __OPENCV_HISTOGRAM_PHASE_UNWRAPPING_HPP__

#include "opencv2/core.hpp"
#include <opencv2/imgproc.hpp>
#include "opencv2/phase_unwrapping/phase_unwrapping.hpp"

namespace cv {
namespace phase_unwrapping {
//! @addtogroup phase_unwrapping
//! @{

    /** @brief Class implementing two-dimensional phase unwrapping based on @cite histogramUnwrapping
     * This algorithm belongs to the quality-guided phase unwrapping methods.
     * First, it computes a reliability map from second differences between a pixel and its eight neighbours.
     * Reliability values lie between 0 and 16*pi*pi. Then, this reliability map is used to compute
     * the reliabilities of "edges". An edge is an entity defined by two pixels that are connected
     * horizontally or vertically. Its reliability is found by adding the the reliabilities of the
     * two pixels connected through it. Edges are sorted in a histogram based on their reliability values.
     * This histogram is then used to unwrap pixels, starting from the highest quality pixel.

     * The wrapped phase map and the unwrapped result are stored in CV_32FC1 Mat.
     */
class CV_EXPORTS_W HistogramPhaseUnwrapping : public PhaseUnwrapping
{

public:
    /**
     * @brief Parameters of phaseUnwrapping constructor.

     * @param width Phase map width.
     * @param height Phase map height.
     * @param histThresh Bins in the histogram are not of equal size. Default value is 3*pi*pi. The one before "histThresh" value are smaller.
     * @param nbrOfSmallBins Number of bins between 0 and "histThresh". Default value is 10.
     * @param nbrOfLargeBins Number of bins between "histThresh" and 32*pi*pi (highest edge reliability value). Default value is 5.
     */
    struct CV_EXPORTS Params
    {
        Params();
        int width;
        int height;
        float histThresh;
        int nbrOfSmallBins;
        int nbrOfLargeBins;
    };
    /**
     * @brief Constructor

     * @param parameters HistogramPhaseUnwrapping parameters HistogramPhaseUnwrapping::Params: width,height of the phase map and histogram characteristics.
     */
    static Ptr<HistogramPhaseUnwrapping> create( const HistogramPhaseUnwrapping::Params &parameters =
                                                 HistogramPhaseUnwrapping::Params() );

    /**
     * @brief Get the reliability map computed from the wrapped phase map.

     * @param reliabilityMap Image where the reliability map is stored.
     */
    CV_WRAP
    virtual void getInverseReliabilityMap( OutputArray reliabilityMap ) = 0;
};

//! @}
}
}
#endif

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