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    GECKO 1.0 
   Human-computer interface based on hand gesture recognition 
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 Plot the center of the hand on display. {
    //-- Allocate the display matrix if needed:
    if ( dst.total() == 0 )
        dst = src.clone();
    //-- Plot center
    if ( _hand_found )
    {
        if ( show_predicted )
            //-- Print predicted point on screen:
            cv::circle( dst, _hand_center_prediction, 4, cv::Scalar( 0, 255, 0), 2 );
        if ( show_actual )
            //-- Print cog on screen:
            cv::circle( dst, _hand_center, 5, cv::Scalar( 255, 0, 0), 2 );
        if ( show_corrected )
            //-- Print estimation on screen:
            cv::circle( dst, _hand_center_estimation, 3, cv::Scalar( 0, 0, 255), 2 );
    }
}
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 1.7.4