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    Metadata details:
    filename: imEuler3dEstimate.m
    path of file: ./repos/matImage/matImage/imMinkowski
    
    the code of the file until where you have to start completion: function [chi, labels] = imEuler3dEstimate(img, varargin)
% Estimate Euler number in a 3D image.
%
%   CHIest = imEuler3dEstimate(IMG)
%   CHIest = imEuler3dEstimate(IMG, CONN)
%   Estimate Euler number in a 3D image, without taking into account the
%   contribution of the voxels located on image border. The result of this
%   function is usually divided by the volume the sampling window to obtain
%   an estimate of Euler number density.
%
%   Example
%     imEuler3dEstimate
%
%   See also

    
function [chi, labels] = imEuler3dEstimate(img, varargin)
% Estimate Euler number in a 3D image.
%
%   CHIest = imEuler3dEstimate(IMG)
%   CHIest = imEuler3dEstimate(IMG, CONN)
%   Estimate Euler number in a 3D image, without taking into account the
%   contribution of the voxels located on image border. The result of this
%   function is usually divided by the volume the sampling window to obtain
%   an estimate of Euler number density.
%
%   Example
%     imEuler3dEstimate
%
%   See also
%     imEuler3dDensity, imEuler3d

% ------
% Author: David Legland
% e-mail: david.legland@inrae.fr
% Created: 2010-07-26,    using Matlab 7.9.0.529 (R2009b)
% Copyright 2010 INRAE - Cepia Software Platform.


%% Process input arguments 

% check image dimension
if ndims(img) ~= 3
    error('first argument should be a 3D image');
end