[Olena-patches] milena r3574: Add ImageMagick save() support

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2009-03-25 Fabien Freling &lt;fabien.freling(a)lrde.epita.fr&gt; Add ImageMagick save() support. * mln/io/magick/all.hh: Update. * mln/io/magick/load.hh: Update. * mln/io/magick/save.hh: Implement save() routine. --- all.hh | 1 load.hh | 2 save.hh | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 139 insertions(+), 1 deletion(-) Index: trunk/milena/mln/io/magick/all.hh =================================================================== --- trunk/milena/mln/io/magick/all.hh (revision 3573) +++ trunk/milena/mln/io/magick/all.hh (revision 3574) @@ -46,5 +46,6 @@ } # include <mln/io/magick/load.hh> +# include <mln/io/magick/save.hh> #endif // ! MLN_IO_MAGICK_ALL_HH Index: trunk/milena/mln/io/magick/save.hh =================================================================== --- trunk/milena/mln/io/magick/save.hh (revision 0) +++ trunk/milena/mln/io/magick/save.hh (revision 3574) @@ -0,0 +1,137 @@ +// Copyright (C) 2009 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library 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 library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef MLN_IO_MAGICK_SAVE_HH +# define MLN_IO_MAGICK_SAVE_HH + +/// +/// \file mln/io/magick/save.hh +/// +/// Define a function which saves an image of kind magick with +/// given path. + +# include <mln/core/image/image2d.hh> +# include <mln/metal/equal.hh> +# include <mln/value/int_u8.hh> +# include <mln/value/rgb8.hh> +# include <Magick++.h> + + +namespace mln +{ + + namespace io + { + + namespace magick + { + + /*! Save a Milena image in a magick image. + * + * \param[out] ima A reference to the image to save. + * \param[in] filename The output. + */ + template <typename I> + void save(Image<I>& ima, + const std::string& filename); + + +# ifndef MLN_INCLUDE_ONLY + + inline + Magick::Color get_color(bool value) + { + if (value) + return Magick::Color("white"); + else + return Magick::Color("black"); + } + + inline + Magick::Color get_color(value::int_u8 value) + { + return Magick::Color((unsigned) value * MaxRGB / 256, + (unsigned) value * MaxRGB / 256, + (unsigned) value * MaxRGB / 256, + 0); + } + + inline + Magick::Color get_color(value::rgb8 value) + { + return Magick::Color((unsigned) value.red() * MaxRGB / 256, + (unsigned) value.green() * MaxRGB / 256, + (unsigned) value.blue() * MaxRGB / 256, + 0); + } + + template <typename I> + inline + void save(Image<I>& ima_, const std::string& filename) + { + trace::entering("mln::io::magick::save"); + + mln_precondition(mln_site_(I)::dim == 2); + I& ima = exact(ima_); + if (!(mln::metal::equal<mln_value(I), bool>::value || + mln::metal::equal<mln_value(I), value::int_u8>::value || + mln::metal::equal<mln_value(I), value::rgb8>::value)) + { + std::cerr << "error: trying to save an unsupported format" << std::endl; + std::cerr << "formats supported: binary, 8bits grayscale (int_u8), 8bits truecolor (rgb8)" << std::endl; + abort(); + } + + Magick::Image im_file(Magick::Geometry(ima.nrows(), ima.ncols()), + Magick::Color(0, 0, 0, 0)); + Magick::PixelPacket* pixel_cache = im_file.getPixels(0, 0, ima.nrows(), ima.ncols()); + Magick::PixelPacket* pixel; + mln_piter(I) p(ima.domain()); + unsigned columns = ima.ncols(); + for_all(p) + { + pixel = pixel_cache + (int) p.to_site().to_vec()[0] * columns + + (int) p.to_site().to_vec()[1]; + *pixel = get_color(ima(p)); + } + im_file.syncPixels(); + im_file.write(filename); + + trace::exiting("mln::io::magick::save"); + } + + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::io::magick + + } // end of namespace mln::io + +} // end of namespace mln + + +#endif // ! MLN_IO_MAGICK_SAVE_HH Index: trunk/milena/mln/io/magick/load.hh =================================================================== --- trunk/milena/mln/io/magick/load.hh (revision 3573) +++ trunk/milena/mln/io/magick/load.hh (revision 3574) @@ -147,7 +147,7 @@ { const Magick::PixelPacket *pixel = pixel_cache + (int) p.to_site().to_vec()[0] * columns + (int) p.to_site().to_vec()[1]; - value::rgb8 pix(pixel->red % 256, pixel->green % 256, pixel->blue % 256); // WARNING: Quantum = 16bits but rgb is 8bits + value::rgb8 pix(pixel->red % 256, pixel->green % 256, pixel->blue % 256); // FIXME: Quantum = 16bits but rgb is 8bits mln_value(I) res; if (!do_it(pix, res, filename)) abort();