integralHistogram   39 apps/traincascade/HOGfeatures.cpp     integralHistogram(img, integralHist, integralNorm, (int)N_BINS);
integralHistogram   29 apps/traincascade/HOGfeatures.h     virtual void integralHistogram(const cv::Mat &img, std::vector<cv::Mat> &histogram, cv::Mat &norm, int nbins) const;