www.gusucode.com > 线性时频分析工具箱 - ltfat-1.0.8-win32源码程序 > ltfat/signals/cameraman.m
function s=cameraman(); %CAMERAMAN Load the 'cameraman' test image % Usage: s=cameraman; % % CAMERAMAN loads a 256 x 256 greyscale image of a cameraman. % % The returned matrix s consists of integers between 0 and 255, % which have been converted to double precision. % % To display the image, use imagesc with a gray colormap: % % imagesc(cameraman); colormap(gray); axis('image'); % % See ftp://nic.funet.fi/pub/graphics/misc/test-images/ or % http://sipi.usc.edu/database/database.cgi?volume=misc. % % Demos: demo_compression % % Url: http://ltfat.sourceforge.net/doc/signals/cameraman.php % Copyright (C) 2005-2012 Peter L. Soendergaard. % This file is part of LTFAT version 1.0.8 % 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 Soendergaard % TESTING: TEST_SIGNALS % REFERENCE: OK if nargin>0 error('This function does not take input arguments.') end; f=mfilename('fullpath'); s=double(imread([f,'.png']));