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::median ( cv::Mat &  ROI ) [private] Returns the median of the pixel's values. { //-- Unroll the ROI std::vector<unsigned char> unrolled; for (int i = 0; i < ROI.cols; i++ ) for( int j = 0; j < ROI.rows; j++) unrolled.push_back( ROI.at<unsigned char>(i, j) ); //-- Sort the vector std::sort( unrolled.begin(), unrolled.end() ); //-- Get the median if ( unrolled.size() % 2 != 0) { //-- Odd vector: return ceil( unrolled.at( (unrolled.size() -1 ) / 2) ); } else { //-- Even vector: double mean = unrolled.at( unrolled.size() / 2 ) + unrolled.at( (unrolled.size() / 2 ) - 1 ); mean /= 2; return ceil(mean); } }