Mercurial > forge
comparison main/image/isbw.m @ 0:6b33357c7561 octave-forge
Initial revision
author | pkienzle |
---|---|
date | Wed, 10 Oct 2001 19:54:49 +0000 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:6b33357c7561 |
---|---|
1 ## Copyright (C) 2000 Kai Habel | |
2 ## | |
3 ## This program is free software; you can redistribute it and/or modify | |
4 ## it under the terms of the GNU General Public License as published by | |
5 ## the Free Software Foundation; either version 2 of the License, or | |
6 ## (at your option) any later version. | |
7 ## | |
8 ## This program is distributed in the hope that it will be useful, | |
9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 ## GNU General Public License for more details. | |
12 ## | |
13 ## You should have received a copy of the GNU General Public License | |
14 ## along with this program; if not, write to the Free Software | |
15 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | |
17 ## -*- texinfo -*- | |
18 ## @deftypefn {Function File} @var{bool}= isbw (@var{BW}) | |
19 ## returns true for a black-white (binary) image. | |
20 ## All values must be either 0 or 1 | |
21 ## @end deftypefn | |
22 | |
23 ## Author: Kai Habel <kai.habel@gmx.de> | |
24 ## Date: 20/03/2000 | |
25 | |
26 function bool = isbw (BW) | |
27 | |
28 bool = 0; | |
29 if !(nargin == 1) | |
30 usage ("isbw(BW)"); | |
31 endif | |
32 | |
33 if !(is_matrix(BW)) | |
34 return; | |
35 endif | |
36 | |
37 bool = all (all ((BW == 1) + (BW == 0))); | |
38 | |
39 endfunction |