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/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "colour_matrix.h"
/* sRGB color matrix for XYZ -> RGB. This is the same as the one used by the Fraunhofer
EasyDCP player, I think.
*/
double const libdcp::colour_matrix::xyz_to_rgb[3][3] = {
{ 3.24096989631653, -1.5373831987381, -0.498610764741898 },
{ -0.96924364566803, 1.87596750259399, 0.0415550582110882 },
{ 0.0556300804018974, -0.203976958990097, 1.05697154998779 }
};
/* From Dennis Couzin via email */
double const libdcp::colour_matrix::rec601_to_xyz[3][3] = {
{ 0.3935276, 0.3652562, 0.1916771 },
{ 0.2123800, 0.7010562, 0.0865638 },
{ 0.0187394, 0.1119333, 0.9583854 }
};
/* These are the same, but kept as two separate variables for backwards compatibility;
the confusion is fixed in the 1.0 branch.
*/
double const libdcp::colour_matrix::srgb_to_xyz[3][3] = {
{ 0.4123908, 0.3575843, 0.1804808 },
{ 0.2126390, 0.7151687, 0.0721923 },
{ 0.0193308, 0.1191948, 0.9505322 }
};
double const libdcp::colour_matrix::rec709_to_xyz[3][3] = {
{ 0.4123908, 0.3575843, 0.1804808 },
{ 0.2126390, 0.7151687, 0.0721923 },
{ 0.0193308, 0.1191948, 0.9505322 }
};
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