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rawTherapee/rtengine/colortemp.h
Alberto Griggio dca0e41f35 added "Auto White Balance temperature bias" feature 
This new slider in the White Balance tools allows to alter the computation of
the "auto white balance" by "biasing" it towards warmer or cooler
temperatures. The bias is expressed as a percentage of the computed
temperature, so that the resuling temperature is given by
"computedTemp + computedTemp * bias".
2017-02-12 17:39:52 +01:00

215 lines
8.9 KiB
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/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
*
* RawTherapee 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.
*
* RawTherapee 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 RawTherapee. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _COLORTEMP_
#define _COLORTEMP_
#include <glibmm.h>
#include <cmath>
#define pow_F(a,b) (xexpf(b*xlogf(a)))
namespace rtengine
{
#define MINTEMP 1500
#define MAXTEMP 60000
#define MINGREEN 0.02
#define MAXGREEN 10.0
#define MINEQUAL 0.8
#define MAXEQUAL 1.5
#define INITIALBLACKBODY 4000
class ColorTemp
{
private:
double temp;
double green;
double equal;
std::string method;
static void clip (double &temp, double &green);
static void clip (double &temp, double &green, double &equal);
int XYZtoCorColorTemp(double x0, double y0 , double z0, double &temp) const;
void temp2mul (double temp, double green, double equal, double& rmul, double& gmul, double& bmul) const;
public:
ColorTemp () : temp(-1.), green(-1.), equal (1.), method("Custom") {}
explicit ColorTemp (double e) : temp(-1.), green(-1.), equal (e), method("Custom") {}
ColorTemp (double t, double g, double e, const Glib::ustring &m);
ColorTemp (double mulr, double mulg, double mulb, double e);
void update (const double rmul, const double gmul, const double bmul, const double equal, const double tempBias=0.0)
{
this->equal = equal;
mul2temp (rmul, gmul, bmul, this->equal, temp, green);
if (tempBias != 0.0 && tempBias >= -1.0 && tempBias <= 1.0) {
temp += temp * tempBias;
}
}
void useDefaults (const double equal)
{
temp = 6504; // Values copied from procparams.cc
green = 1.0;
this->equal = equal;
}
inline std::string getMethod() const
{
return method;
}
inline double getTemp () const
{
return temp;
}
inline double getGreen () const
{
return green;
}
inline double getEqual () const
{
return equal;
}
void getMultipliers (double &mulr, double &mulg, double &mulb) const
{
temp2mul (temp, green, equal, mulr, mulg, mulb);
}
void mul2temp (const double rmul, const double gmul, const double bmul, const double equal, double& temp, double& green) const;
static void temp2mulxyz (double tem, double gree, const std::string &method, double &Xxyz, double &Zxyz);
static void cieCAT02(double Xw, double Yw, double Zw, double &CAM02BB00, double &CAM02BB01, double &CAM02BB02, double &CAM02BB10, double &CAM02BB11, double &CAM02BB12, double &CAM02BB20, double &CAM02BB21, double &CAM02BB22, double adap );
//static void CAT02 (Imagefloat* baseImg, const ProcParams* params);
//static void ciecam_02 (LabImage* lab, const ProcParams* params);
bool operator== (const ColorTemp& other) const
{
return fabs(temp - other.temp) < 1e-10 && fabs(green - other.green) < 1e-10;
}
bool operator!= (const ColorTemp& other) const
{
return !(*this == other);
}
static double blackbody_spect (double wavelength, double temperature);
static double daylight_spect (double wavelength, double m1, double m2);
static const double Cloudy6200_spect[97];
static const double Daylight5300_spect[97];
static const double Shade7600_spect[97];
static const double A2856_spect[97];
static const double FluoF1_spect[97];
static const double FluoF2_spect[97];
static const double FluoF3_spect[97];
static const double FluoF4_spect[97];
static const double FluoF5_spect[97];
static const double FluoF6_spect[97];
static const double FluoF7_spect[97];
static const double FluoF8_spect[97];
static const double FluoF9_spect[97];
static const double FluoF10_spect[97];
static const double FluoF11_spect[97];
static const double FluoF12_spect[97];
static const double HMI_spect[97];
static const double GTI_spect[97];
static const double JudgeIII_spect[97];
static const double Solux3500_spect[97];
static const double Solux4100_spect[97];
static const double Solux4700_spect[97];
static const double NG_Solux4700_spect[97];
static const double NG_LEDLSI2040_spect[97];
static const double NG_CRSSP12WWMR16_spect[97];
static const double Flash5500_spect[97];
static const double Flash6000_spect[97];
static const double Flash6500_spect[97];
//spectral data 8 color Colorchecker24
static double get_spectral_color (double wavelength, const double* array)
{
int wlm = (int) ((wavelength - 350.) / 5.);
return (array[wlm]);
}
static const double ColorchechredC3_spect[97];
static const double ColorchechOraA2_spect[97];
static const double ColorchechYelD3_spect[97];
static const double ColorchechGreE2_spect[97];
static const double ColorchechGreB3_spect[97];
static const double ColorchechCyaF3_spect[97];
static const double ColorchechPurD2_spect[97];
static const double ColorchechMagE3_spect[97];
static const double ColorchechSkiA138_13_14_spect[97];
static const double ColorchechGraC4_67_spect[97];
static const double ColorchechSkiB166_18_18_spect[97];
static const double ColorchechBluC150_m5_m22_spect[97];
static const double ColorchechDCBluN881_m7_m14_spect[97];//ColorChecker DC N8
static const double ColorchechSGSkiF763_14_26_spect[97];//ColorChecker SG F7
static const double ColorchechSGSkiK285_11_17_spect[97];//ColorChecker SG K2
static const double ColorchechWhiA496_spect[97];
static const double ColorchechGreD1_spect[97];
static const double ColorchechSGBlaN3_6_spect[97];//ColorChecker SG N3
static const double JDC468_GraK14_44_spect[97];//468 K14
static const double JDC468_BluH10_spect[97];//468 H10
static const double ColabSkin35_15_17_spect[97];//Skin L 35
static const double ColabSkin57_22_18_spect[97];//Skin L 57
static const double ColabSkin40_17_17_spect[97];//Skin L 40
static const double ColabSkin91_4_14_spect[97];//Skin L 91
static const double ColabSkin87_8_8_spect[97];//Skin L 87
static const double ColabSkin89_8_21_spect[97];//Skin L 89
static const double ColabSkin75_8_4_spect[97];//Skin L 75
static const double ColabSkin75_10_33_spect[97];//Skin L 75
static const double ColabSkin65_33_11_spect[97];//Skin L 65
static const double ColabSkin65_7_24_spect[97];//Skin L 65
static const double ColabSkin57_19_6_spect[97];//Skin L 57
static const double ColabSkin57_4_19_spect[97];//Skin L 57
static const double ColabSkin57_10_28_spect[97];//Skin L 57
static const double ColabSkin40_7_19_spect[97];//Skin L 57
static const double ColabSkin40_17_6_spect[97];//Skin L 40
static const double ColabSkin40_4_11_spect[97];//Skin L 40
static const double ColabSkin33_6_15_spect[97];//Skin L 33
static const double ColabSkin33_15_5_spect[97];//Skin L 33
static const double ColabSkin33_10_15_spect[97];//Skin L 33
static const double ColabSkin24_5_6_spect[97];//Skin L 24
static const double ColabSkin26_18_18_spect[97];//Skin L 26
static const double ColabSkin24_7_5_spect[97];//Skin L 24
static const double ColabSkin20_4_2_spect[97];//Skin L 20
static const double ColabSkin98_m2_10_spect[97];//Skin L 98
static const double ColabSkin90_m1_20_spect[97];//Skin L 90
static const double ColabSkin95_0_4_spect[97];//Skin L 95
static const double ColabSkin81_2_14_spect[97];//Skin L 81
static const double ColabSkin87_3_10_spect[97];//Skin L 87
static const double ColabSkin77_12_21_spect[97];//Skin L 77
static const double ColabSkin70_7_32_spect[97];//Skin L 77
static const double ColabSky60_0_m31_spect[97];//Sky L=60
static const double ColabSky42_0_m24_spect[97];//Sky L=42
static void spectrum_to_xyz_daylight (double _m1, double _m2, double &x, double &y, double &z);
static void spectrum_to_xyz_blackbody (double _temp, double &x, double &y, double &z);
static void spectrum_to_xyz_preset (const double* spec_intens, double &x, double &y, double &z);
static void spectrum_to_color_xyz_daylight (const double* spec_color, double _m1, double _m2, double &xx, double &yy, double &zz);
static void spectrum_to_color_xyz_blackbody (const double* spec_color, double _temp, double &xx, double &yy, double &zz);
static void spectrum_to_color_xyz_preset (const double* spec_color, const double* spec_intens, double &xx, double &yy, double &zz);
};
}
#endif
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