Mercurial > hg > octave-image
changeset 528:636b9e92019c
normxcorr2: new function is wrapper for xcorr2 from signal package
| author | carandraug |
|---|---|
| date | Fri, 16 Dec 2011 20:33:08 +0000 |
| parents | 3a3ba9169c05 |
| children | 99008b4a3f2a |
| files | DESCRIPTION INDEX NEWS inst/normxcorr2.m |
| diffstat | 4 files changed, 34 insertions(+), 1 deletions(-) [+] |
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--- a/DESCRIPTION +++ b/DESCRIPTION @@ -9,7 +9,7 @@ The package also provides functions for feature extraction, image statistics, spatial and geometric transformations, morphological operations, linear filtering, and much more. -Depends: octave (>= 3.4.0) +Depends: octave (>= 3.4.0), signal Autoload: yes License: GPL version 2 or later Url: http://octave.sf.net
--- a/INDEX +++ b/INDEX @@ -16,6 +16,7 @@ hough_line hough_circle immaximas + normxcorr2 rangefilt regionprops stdfilt
--- a/NEWS +++ b/NEWS @@ -18,6 +18,7 @@ iptchecknargin iptcheckstrs iptnum2ordinal + normxcorr2 ** The following functions have been deprecated in previous releases of the image package and have now been removed:
new file mode 100644 --- /dev/null +++ b/inst/normxcorr2.m @@ -0,0 +1,31 @@ +## Copyright (C) 2011 Carnë Draug <carandraug+dev@gmail.com> +## +## 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{cc} =} normxcorr2 (@var{template}, @var{img}) +## @deftypefn {Function File} {@var{cc} =} normxcorr2 (@var{template}, @var{img}) +## Compute the normalized 2D cross correlation. +## +## The output matrix @var{cc} shows the correlation coefficients of @var{template} +## for each position in @var{img}. +## @seealso{conv2, corr2, xcorr2} +## @end deftypefn + +function cc = normxcorr2 (temp, img) + if (nargin != 2) + print_usage; + endif + cc = xcorr2 (img, temp, "coeff"); +endfunction