# v_peak2dquad

## PURPOSE

V_PEAK2DQUAD find quadratically-interpolated peak in a 2D array

## SYNOPSIS

function [v,xy,t,m]=v_peak2dquad(z)

## DESCRIPTION

    V_PEAK2DQUAD find quadratically-interpolated peak in a 2D array

     Note: This routine has been superceeded by v_quadpeak

      Inputs:  Z(m,n)   is the input array

     Outputs:  V        is the peak value
               XY(2,1)  is the position of the peak (in fractional subscript values)
               T        is -1, 0, +1 for maximum, saddle point or minimum
               M        defines the fitted quadratic: z = [x y 1]*M*[x y 1]'

## CROSS-REFERENCE INFORMATION

This function calls:

- v_quadpeak V_PEAK2DQUAD find quadratically-interpolated peak in a N-D array

This function is called by:

## SOURCE CODE

    0001 function [v,xy,t,m]=v_peak2dquad(z)
    0002 %V_PEAK2DQUAD find quadratically-interpolated peak in a 2D array
    0003 %
    0004 % Note: This routine has been superceeded by v_quadpeak
    0005 %
    0006 %  Inputs:  Z(m,n)   is the input array
    0007 %
    0008 % Outputs:  V        is the peak value
    0009 %           XY(2,1)  is the position of the peak (in fractional subscript values)
    0010 %           T        is -1, 0, +1 for maximum, saddle point or minimum
    0011 %           M        defines the fitted quadratic: z = [x y 1]*M*[x y 1]'
    0012
    0013 %       Copyright (C) Mike Brookes 2008
    0014 %      Version: $Id: v_peak2dquad.m 10865 2018-09-21 17:22:45Z dmb $
    0015 %
    0016 %   VOICEBOX is a MATLAB toolbox for speech processing.
    0017 %   Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html
    0018 %
    0019 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    0020 %   This program is free software; you can redistribute it and/or modify
    0021 %   it under the terms of the GNU Lesser General Public License as published by
    0022 %   the Free Software Foundation; either version 3 of the License, or
    0023 %   (at your option) any later version.
    0024 %
    0025 %   This program is distributed in the hope that it will be useful,
    0026 %   but WITHOUT ANY WARRANTY; without even the implied warranty of
    0027 %   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    0028 %   GNU Lesser General Public License for more details.
    0029 %
    0030 %   You can obtain a copy of the GNU Lesser General Public License from
    0031 %   https://www.gnu.org/licenses/ .
    0032 %
    0033 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    0034
    0035 [v,xy,t,m]=v_quadpeak(z);