opencv/modules/objdetect/src/haar.hpp

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/* Haar features calculation */

#ifndef OPENCV_OBJDETECT_HAAR_HPP
#define OPENCV_OBJDETECT_HAAR_HPP

#define CV_HAAR_FEATURE_MAX_LOCAL 3

typedef int sumtype;
typedef double sqsumtype;

typedef struct CvHidHaarFeature
{
    struct
    {
        sumtype *p0, *p1, *p2, *p3;
        float weight;
    }
    rect[CV_HAAR_FEATURE_MAX_LOCAL];
} CvHidHaarFeature;


typedef struct CvHidHaarTreeNode
{
    CvHidHaarFeature feature;
    float threshold;
    int left;
    int right;
} CvHidHaarTreeNode;


typedef struct CvHidHaarClassifier
{
    int count;
    //CvHaarFeature* orig_feature;
    CvHidHaarTreeNode* node;
    float* alpha;
} CvHidHaarClassifier;

#define calc_sumf(rect,offset) \
    static_cast<float>((rect).p0[offset] - (rect).p1[offset] - (rect).p2[offset] + (rect).p3[offset])

namespace cv_haar_avx
{
#if 0 /*CV_TRY_AVX*/
    #define CV_HAAR_USE_AVX 1
#else
    #define CV_HAAR_USE_AVX 0
#endif

#if CV_HAAR_USE_AVX
    // AVX version icvEvalHidHaarClassifier.  Process 8 CvHidHaarClassifiers per call. Check AVX support before invocation!!
    double icvEvalHidHaarClassifierAVX(CvHidHaarClassifier* classifier, double variance_norm_factor, size_t p_offset);
    double icvEvalHidHaarStumpClassifierAVX(CvHidHaarClassifier* classifier, double variance_norm_factor, size_t p_offset);
    double icvEvalHidHaarStumpClassifierTwoRectAVX(CvHidHaarClassifier* classifier, double variance_norm_factor, size_t p_offset);
#endif
}

#endif

/* End of file. */