[Octave-cvsupdate] SF.net SVN: octave:[9415] trunk/octave-forge/main/image

[<car...@us...>]

Revision: 9415
          http://octave.svn.sourceforge.net/octave/?rev=9415&view=rev
Author:   carandraug
Date:     2011-12-16 20:33:08 +0000 (Fri, 16 Dec 2011)
Log Message:
-----------
normxcorr2: new function is wrapper for xcorr2 from signal package

Modified Paths:
--------------
    trunk/octave-forge/main/image/DESCRIPTION
    trunk/octave-forge/main/image/INDEX
    trunk/octave-forge/main/image/NEWS

Added Paths:
-----------
    trunk/octave-forge/main/image/inst/normxcorr2.m

Modified: trunk/octave-forge/main/image/DESCRIPTION
===================================================================
--- trunk/octave-forge/main/image/DESCRIPTION	2011-12-16 20:32:15 UTC (rev 9414)
+++ trunk/octave-forge/main/image/DESCRIPTION	2011-12-16 20:33:08 UTC (rev 9415)
@@ -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

Modified: trunk/octave-forge/main/image/INDEX
===================================================================
--- trunk/octave-forge/main/image/INDEX	2011-12-16 20:32:15 UTC (rev 9414)
+++ trunk/octave-forge/main/image/INDEX	2011-12-16 20:33:08 UTC (rev 9415)
@@ -16,6 +16,7 @@
  hough_line
  hough_circle
  immaximas
+ normxcorr2
  rangefilt
  regionprops
  stdfilt

Modified: trunk/octave-forge/main/image/NEWS
===================================================================
--- trunk/octave-forge/main/image/NEWS	2011-12-16 20:32:15 UTC (rev 9414)
+++ trunk/octave-forge/main/image/NEWS	2011-12-16 20:33:08 UTC (rev 9415)
@@ -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:

Added: trunk/octave-forge/main/image/inst/normxcorr2.m
===================================================================
--- trunk/octave-forge/main/image/inst/normxcorr2.m	                        (rev 0)
+++ trunk/octave-forge/main/image/inst/normxcorr2.m	2011-12-16 20:33:08 UTC (rev 9415)
@@ -0,0 +1,31 @@
+## Copyright (C) 2011 Carnë Draug <car...@gm...>
+##
+## 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

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