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col2im.m
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col2im.m
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%COL2IM Convert pixel vector to image
%
% OUT = COL2IM(PIX, IMSIZE) is an image (HxWxP) comprising the pixel values in
% PIX (NxP) with one row per pixel where N=HxW. IMSIZE is a 2-vector (N,M).
%
% OUT = COL2IM(PIX, IM) as above but the dimensions of OUT are the same as IM.
%
% Notes::
% - The number of rows in PIX must match the product of the elements of IMSIZE.
%
% See also IM2COL.
% Copyright (C) 1993-2011, by Peter I. Corke
%
% This file is part of The Machine Vision Toolbox for Matlab (MVTB).
%
% MVTB is free software: you can redistribute it and/or modify
% it under the terms of the GNU Lesser General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% MVTB is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU Lesser General Public License for more details.
%
% You should have received a copy of the GNU Leser General Public License
% along with MVTB. If not, see <http://www.gnu.org/licenses/>.
function im = col2im(col, img)
ncols = numcols(col);
if numel(img) == 2
sz = img;
elseif numel(img) == 3
sz = img(1:2);
else
sz = size(img);
sz = sz(1:2);
end
if ncols > 1
sz = [sz ncols];
end
im = reshape(col, sz);