opencv/modules/softcascade/doc/softcascade_cuda.rst

CUDA version of Soft Cascade Classifier
========================================

softcascade::SCascade
-----------------------------------------------
.. ocv:class:: softcascade::SCascade : public Algorithm

Implementation of soft (stageless) cascaded detector. ::

    class CV_EXPORTS SCascade : public Algorithm
    {
        struct CV_EXPORTS Detection
        {
              ushort x;
              ushort y;
              ushort w;
              ushort h;
              float confidence;
              int kind;

              enum {PEDESTRIAN = 0};
        };

        SCascade(const double minScale = 0.4, const double maxScale = 5., const int scales = 55, const int rejfactor = 1);
        virtual ~SCascade();
        virtual bool load(const FileNode& fn);
        virtual void detect(InputArray image, InputArray rois, OutputArray objects, Stream& stream = Stream::Null()) const;
        virtual void genRoi(InputArray roi, OutputArray mask, Stream& stream = Stream::Null()) const;
    };


softcascade::SCascade::~SCascade
---------------------------------
Destructor for SCascade.

.. ocv:function:: softcascade::SCascade::~SCascade()



softcascade::SCascade::load
----------------------------
Load cascade from FileNode.

.. ocv:function:: bool softcascade::SCascade::load(const FileNode& fn)

    :param fn: File node from which the soft cascade are read.



softcascade::SCascade::detect
------------------------------
Apply cascade to an input frame and return the vector of Decection objcts.

.. ocv:function:: void softcascade::SCascade::detect(InputArray image, InputArray rois, OutputArray objects, cv::cuda::Stream& stream = cv::cuda::Stream::Null()) const

    :param image: a frame on which detector will be applied.

    :param rois: a regions of interests mask generated by genRoi. Only the objects that fall into one of the regions will be returned.

    :param objects: an output array of Detections represented as GpuMat of detections (SCascade::Detection). The first element of the matrix is  actually a count of detections.

    :param stream: a high-level CUDA stream abstraction used for asynchronous execution.