average backgroundSubstraction bg calibrate calibrate calibrationLoop customValues defaultValues drawFaceMarks faceDetector factorX factorY filter_hand filterBlobs filterContours filterFace getCalibration getLastFacesPos getLower getUpper halfSide HandDetector HandDetector hue_invert hue_sigma_mult initBackgroundSubstractor initCascadeClassifier lastFacesPos lower lower_limit median operator() sat_sigma_mult stdDeviation threshold upper upper_limit val_sigma_mult ~HandDetector

int HandDetector::stdDeviation ( cv::Mat &  ROI ) [private] Returns the standard deviation of the pixel's values. { //-- Calculates the std deviation of the pixel values double stddev = 0; for (int i = 0; i < ROI.cols; i++ ) for( int j = 0; j < ROI.rows; j++) stddev += pow( (int) ROI.at<unsigned char>(i, j), 2); stddev = sqrt( stddev ) / (ROI.cols * ROI.rows); return ceil(stddev); }