Original source may be found at http://octave.sf.net.

Files: inst/bwlabel.m, inst/bwborder.m
Copyright: © 2000 Etienne Grossmann
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imginfo.m
Copyright: © 2002 Etienne Grossmann
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/medfilt2.m, inst/ordfilt2.m, src/cordflt2.cc, inst/impad.m
Copyright: © 2000 Teemu Ikonen
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imrotate_Fourier.m, inst/imshear.m, inst/imtranslate.m
Copyright: © 2002 Jeff Orchard
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imrotate.m
Copyright: © 2004-2005 Justus H. Piater
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/graythresh.m
Copyright: © 2005  Barre-Piquot
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/fftconv2.m, src/graycomatrix.cc, src/houghtf.cc
Copyright: © 2004 Stefan van der Walt
License: other
 This program is free software; redistribution and use in source and
 binary forms, with or without modification, are permitted provided that
 the following conditions are met:
 .
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

Files: inst/mat2gray.m, inst/imhist.m
Copyright: © 1999,2000  Kai Habel
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imadjust.m
Copyright: © 1999, 2000 Kai Habel
           © 2004 Josep Mones i Teixidor
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/corr2.m, inst/isbw.m, inst/grayslice.m, inst/isind.m,
 inst/histeq.m, inst/isgray.m, inst/mean2.m, inst/im2bw.m, inst/std2.m,
Copyright: © 2000 Kai Habel
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/rgb2gray.m
Copyright: © 2000, 2001 Kai Habel
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/imnoise.m
Copyright: © 2000 Paul Kienzle
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: inst/edge.m, inst/bwselect.m, src/bwfill.cc
Copyright: © 1999 Andy Adler
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imread.m inst/imwrite.m
Copyright: © 2002 Andy Adler
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: src/rotate_scale.cc
Copyright: © 2003 Andy Adler
License: other
 This code has no warrany whatsoever.  Do what you like with this code
 as long as you leave this copyright in place.

Files: src/__bwdist.cc
Copyright: © 2006 Pedro Felzenszwalb
License: GPL-2+
 This files is under the GPL, version 2 or later.

Files: src/pngcanvas.h, src/pngwrite.cc, src/pngread.cc
Copyright: © 2003 Nadav Rotem
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/qtdecomp.m, inst/qtgetblk.m, inst/blkproc.m,
 inst/col2im.m, inst/uintlut.m, inst/cmpermute.m, inst/poly2mask.m,
 inst/makelut.m, inst/roicolor.m, inst/conndef.m, inst/cmunique.m,
 inst/qtsetblk.m, inst/bweuler.m, inst/bestblk.m, inst/im2col.m,
 inst/bwmorph.m, inst/erode.m, inst/isrgb.m, inst/stretchlim.m,
 inst/applylut.m, inst/nlfilter.m, inst/dilate.m, inst/padarray.m
Copyright: © 2004 Josep Mones i Teixidor
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/bwarea.m, inst/imresize.m, inst/fspecial.m
Copyright: © 2005 Søren Hauberg
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/bwdist.m, inst/imperspectivewarp.m, inst/imremap.m,
 inst/label2rgb.m, inst/bwperim.m
Copyright: © 2006 Søren Hauberg
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/imfilter.m, inst/im2uint16.m, inst/im2double.m,
 inst/im2uint8.m, inst/imsmooth.m
Copyright: © 2007 Søren Hauberg
License: GPL-2+
 These files are under the GPL, version 2 or later.

Files: inst/bmpwrite.m, inst/colfilt.m, inst/colorgradient.m
Copyright: © Paul Kienzle
License: PD
 This code is in the public domain.

Files: inst/bwselect.m, inst/edge.m
Copyright: © 1999 Andy Adler
License: other
 This code has no warranty whatsoever. Do what you like with this code
 as long as you leave this copyright in place.

Files: src/deriche.cc
Copyright: © Christian Kotz 2006
License: other
 This code has no warranty whatsover. Do what you like with this code
 as long as you leave this copyright in place.

Files: src/jpgread.cc, src/jpgwrite.cc
Copyright: © 1998 Andy Adler
License: PD
 This code is in the public domain

Files: debian/*
Copyright: © 2008 Ólafur Jens Sigurðsson <ojsbug@gmail.com>
License: GPL-3+
 The Debian packaging information is under the GPL, version 3 or later.

On Debian systems, the complete text of the GNU General Public License,
version 2, can be found in the file `/usr/share/common-licenses/GPL-2. The
complete text of the GNU General Public License, version 3, can be found
in the file `/usr/share/common-licenses/GPL-3.
