/usr/share/octave/packages/image-2.6.1/bwselect.m is in octave-image 2.6.1-1.
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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 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | ## Copyright (C) 1999 Andy Adler <adler@sce.carleton.ca>
##
## 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/>.
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{imout}, @var{idx}] =} bwselect(@var{im}, @var{cols}, @var{rows}, @var{connect})
## Select connected regions in a binary image.
##
## @table @code
## @item @var{im}
## binary input image
## @item [@var{cols}, @var{rows}]
## vectors of starting points (x,y)
## @item @var{connect}
## connectedness 4 or 8. default is 8
## @item @var{imout}
## the image of all objects in image im that overlap
## pixels in (cols,rows)
## @item @var{idx}
## index of pixels in imout
## @end table
## @end deftypefn
function [imout, idx] = bwselect (im, cols, rows, connect = 8)
[~, idx] = bwfill (! im, cols, rows, connect);
imout = false (size (im));
imout(idx) = true;
endfunction
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