function s=ltfattext();
%LTFATTEXT Load the 'ltfattext' test image
% Usage: s=ltfattext;
%
% LTFATTEXT loads a 401 x600 black and white image of the word
% 'LTFAT'.
%
% The image is assumed to be used as a spectrogram with 800 channels
% as produced by DGTREAL.
%
% The returned matrix s consists of the integers 0 and 1, which have
% been converted to double precision.
%
% To display the image, use imagesc with a gray colormap:
%
% imagesc(ltfattext);
% colormap(gray);
% axis('xy');
%
% See also: ltfatlogo, dgtreal
%
% Url: http://ltfat.github.io/doc/signals/ltfattext.html
% Copyright (C) 2005-2023 Peter L. Soendergaard <peter@sonderport.dk> and others.
% This file is part of LTFAT version 2.6.0
%
% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% This program 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 General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
% AUTHOR : Peter L. Søndergaard
% TESTING: TEST_SIGNALS
% REFERENCE: OK
if nargin>0
error('This function does not take input arguments.')
end;
f=mfilename('fullpath');
s=flipud(double(imread([f,'.png'])))/255;