537fa73d3f
* Added contrast threshold Log encoding * Improve contrast threshold * Chanhe tooltip * Change sign threshold when contrast negative * Another change threshold with contrast Q and J
116 lines
5.7 KiB
C++
116 lines
5.7 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee 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
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* GNU 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 RawTherapee. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <cmath>
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#include <cstdint>
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#include "opthelper.h"
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template<typename T>
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class LUT;
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using LUTu = LUT<uint32_t>;
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using LUTf = LUT<float>;
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namespace rtengine
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{
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class Ciecam02
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{//also used with Ciecam16
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private:
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static float d_factorfloat ( float f, float la );
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static float calculate_fl_from_la_ciecam02float ( float la );
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static float achromatic_response_to_whitefloat ( float x, float y, float z, float d, float fl, float nbb, int c16);
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static void xyz_to_cat02float ( float &r, float &g, float &b, float x, float y, float z, int c16);
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static void cat02_to_hpefloat ( float &rh, float &gh, float &bh, float r, float g, float b, int c16);
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#ifdef __SSE2__
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static void xyz_to_cat02float ( vfloat &r, vfloat &g, vfloat &b, vfloat x, vfloat y, vfloat z, int c16);
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static void cat02_to_hpefloat ( vfloat &rh, vfloat &gh, vfloat &bh, vfloat r, vfloat g, vfloat b, int c16);
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static vfloat nonlinear_adaptationfloat ( vfloat c, vfloat fl );
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#endif
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static float nonlinear_adaptationfloat ( float c, float fl );
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static float inverse_nonlinear_adaptationfloat ( float c, float fl );
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static void calculate_abfloat ( float &aa, float &bb, float h, float e, float t, float nbb, float a );
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static void Aab_to_rgbfloat ( float &r, float &g, float &b, float A, float aa, float bb, float nbb );
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static void hpe_to_xyzfloat ( float &x, float &y, float &z, float r, float g, float b, int c16);
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static void cat02_to_xyzfloat ( float &x, float &y, float &z, float r, float g, float b, int c16);
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#ifdef __SSE2__
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static vfloat inverse_nonlinear_adaptationfloat ( vfloat c, vfloat fl );
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static void calculate_abfloat ( vfloat &aa, vfloat &bb, vfloat h, vfloat e, vfloat t, vfloat nbb, vfloat a );
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static void Aab_to_rgbfloat ( vfloat &r, vfloat &g, vfloat &b, vfloat A, vfloat aa, vfloat bb, vfloat nbb );
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static void hpe_to_xyzfloat ( vfloat &x, vfloat &y, vfloat &z, vfloat r, vfloat g, vfloat b, int c16);
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static void cat02_to_xyzfloat ( vfloat &x, vfloat &y, vfloat &z, vfloat r, vfloat g, vfloat b, int c16);
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#endif
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public:
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Ciecam02 () {}
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static void curvecolorfloat (float satind, float satval, float &sres, float parsat);
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static void curveJfloat (float br, float contr, float thr, const LUTu & histogram, LUTf & outCurve ) ;
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/**
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* Inverse transform from CIECAM02 JCh to XYZ.
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*/
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static void jch2xyz_ciecam02float ( float &x, float &y, float &z,
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float J, float C, float h,
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float xw, float yw, float zw,
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float c, float nc, float n, float nbb, float ncb, float fl, float cz, float d, float aw, int c16);
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#ifdef __SSE2__
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static void jch2xyz_ciecam02float ( vfloat &x, vfloat &y, vfloat &z,
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vfloat J, vfloat C, vfloat h,
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vfloat xw, vfloat yw, vfloat zw,
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vfloat nc, vfloat n, vfloat nbb, vfloat ncb, vfloat fl, vfloat d, vfloat aw, vfloat reccmcz, int c16 );
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#endif
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/**
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* Forward transform from XYZ to CIECAM02 JCh.
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*/
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static void initcam1float (float yb, float pilotd, float f, float la, float xw, float yw, float zw, float &n, float &d, float &nbb, float &ncb,
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float &cz, float &aw, float &wh, float &pfl, float &fl, float c, int c16);
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static void initcam2float (float yb, float pilotd, float f, float la, float xw, float yw, float zw, float &n, float &d, float &nbb, float &ncb,
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float &cz, float &aw, float &fl, int c16);
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static void xyz2jch_ciecam02float ( float &J, float &C, float &h,
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float aw, float fl,
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float x, float y, float z,
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float xw, float yw, float zw,
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float c, float nc, float n, float nbb, float ncb, float cz, float d, int c16);
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static void xyz2jchqms_ciecam02float ( float &J, float &C, float &h,
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float &Q, float &M, float &s, float aw, float fl, float wh,
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float x, float y, float z,
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float xw, float yw, float zw,
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float c, float nc, float n, float nbb, float ncb, float pfl, float cz, float d, int c16);
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#ifdef __SSE2__
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static void xyz2jchqms_ciecam02float ( vfloat &J, vfloat &C, vfloat &h,
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vfloat &Q, vfloat &M, vfloat &s, vfloat aw, vfloat fl, vfloat wh,
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vfloat x, vfloat y, vfloat z,
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vfloat xw, vfloat yw, vfloat zw,
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vfloat c, vfloat nc, vfloat n, vfloat nbb, vfloat ncb, vfloat pfl, vfloat cz, vfloat d, int c16);
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#endif
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};
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}
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