/usr/share/psychtoolbox-3/PsychOneliners/VecToImage.m is in psychtoolbox-3-common 3.0.9+svn2579.dfsg1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | function image = VecToImage(vec,nRows,nCols)
% image = VecToImage(vec,[nRows,nCols])
%
% Convert an image from vector to matrix format.
% Image must be square for this to work properly.
%
% Also see ImageToVec.
%
% 8/13/94 dhb Added optional nRows,nCols arguments.
% Figure out image size
[m,n] = size(vec);
if (nargin == 1)
nRows = floor(sqrt(m));
nCols = nRows;
elseif (nRows*nCols ~= m)
error('Passed image dimensions do not match vector size');
end
% Reshape it into an image
image = reshape(vec,nRows,nCols);
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