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save_header.hh
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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//
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// This file is part of Olena.
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//
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// Olena is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, version 2 of the License.
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//
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// Olena is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Olena. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free
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// software project without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to produce
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// an executable, this file does not by itself cause the resulting
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// executable to be covered by the GNU General Public License. This
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// exception does not however invalidate any other reasons why the
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// executable file might be covered by the GNU General Public License.
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#ifndef MLN_IO_PNM_SAVE_HEADER_HH
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# define MLN_IO_PNM_SAVE_HEADER_HH
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# include <iostream>
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# include <fstream>
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# include <mln/io/pnm/max_component.hh>
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# include <mln/value/rgb.hh>
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# include <mln/geom/nrows.hh>
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# include <mln/geom/ncols.hh>
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namespace
mln
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{
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namespace
io
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{
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# ifndef MLN_INCLUDE_ONLY
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namespace
pnm
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{
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template
<
typename
V>
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inline
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void
save_max_val(V&, std::ofstream& file)
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{
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file <<
max_component
(V()) << std::endl;
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}
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inline
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void
save_max_val(
bool
&, std::ofstream&)
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{
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}
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template
<
typename
I>
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inline
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void
save_header(
char
type,
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const
I& ima,
const
std::string& filename,
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std::ofstream& file)
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{
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if
(! file)
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{
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std::cerr <<
"error: cannot open file '"
<< filename
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<<
"'!"
;
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abort();
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}
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file <<
"P"
<< type << std::endl;
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file <<
"# Generated by Milena 1.0 http://olena.lrde.epita.fr"
<< std::endl;
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file <<
"# EPITA Research and Development Laboratory (LRDE)"
<< std::endl;
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// We have a two-line comment because xv is buggy for some
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// tiny binary images and their workaround is to have such a
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// two-line comment...
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file <<
geom::ncols
(ima) <<
' '
<<
geom::nrows
(ima) << std::endl;
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mln_value(I) i;
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save_max_val(i, file);
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}
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}
// end of namespace mln::io::pnm
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# endif // ! MLN_INCLUDE_ONLY
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}
// end of namespace mln::io
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}
// end of namespace mln
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#endif // ! MLN_IO_PNM_SAVE_HEADER_HH
mln
io
pnm
save_header.hh
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