aux_sub2ind.m

Standard model object recognition matlab code

function ndx = aux_sub2ind (siz, varargin)

% FUNCTION ndx = aux_sub2ind (siz,varargin)
%
% Linear index from multiple subscripts.
% This is same as Matlab's own sub2ind, but without checking for
% zero subscript.  When the subscript is zero, zero index is returned.

siz = double(siz);

%Compute linear indices
k = [1 cumprod(siz(1:end-1))];
ndx = 1;
for i = 1:length(siz),
  v = varargin{i};
  ndx = ndx + (v-1)*k(i);
end