637 lines
20 KiB
C++
637 lines
20 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 <http://www.gnu.org/licenses/>.
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*/
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#include "rtengine.h"
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#include "improcfun.h"
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#include <glibmm.h>
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#include "iccstore.h"
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#include "iccmatrices.h"
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#include "../rtgui/options.h"
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#include "settings.h"
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#include "curves.h"
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#include "alignedbuffer.h"
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#include "color.h"
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namespace rtengine
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{
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#define CLIP01(a) ((a)>0?((a)<1?(a):1):0)
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extern const Settings* settings;
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const double (*wprof[])[3] = {xyz_sRGB, xyz_adobe, xyz_prophoto, xyz_widegamut, xyz_bruce, xyz_beta, xyz_best};
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const double (*iwprof[])[3] = {sRGB_xyz, adobe_xyz, prophoto_xyz, widegamut_xyz, bruce_xyz, beta_xyz, best_xyz};
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const char* wprofnames[] = {"sRGB", "Adobe RGB", "ProPhoto", "WideGamut", "BruceRGB", "Beta RGB", "BestRGB"};
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const int numprof = 7;
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void ImProcFunctions::lab2monitorRgb (LabImage* lab, Image8* image)
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{
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//gamutmap(lab);
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if (monitorTransform) {
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int W = lab->W;
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int H = lab->H;
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unsigned char * data = image->data;
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// cmsDoTransform is relatively expensive
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#ifdef _OPENMP
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#pragma omp parallel firstprivate(lab, data, W, H)
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#endif
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{
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AlignedBuffer<float> pBuf(3 * lab->W);
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float *buffer = pBuf.data;
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#ifdef _OPENMP
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#pragma omp for schedule(dynamic,16)
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#endif
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for (int i = 0; i < H; i++) {
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const int ix = i * 3 * W;
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int iy = 0;
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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float fy, fx, fz, x_, y_, z_, LL;
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for (int j = 0; j < W; j++) {
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buffer[iy++] = rL[j] / 327.68f;
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buffer[iy++] = ra[j] / 327.68f;
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buffer[iy++] = rb[j] / 327.68f;
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}
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if (!settings->HistogramWorking && output2monitorTransform && lab2outputTransform) {
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AlignedBuffer<float> buf(3 * W);
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cmsDoTransform (lab2outputTransform, buffer, buf.data, W);
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cmsDoTransform (output2monitorTransform, buf.data, data + ix, W);
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} else {
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cmsDoTransform (monitorTransform, buffer, data + ix, W);
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}
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}
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} // End of parallelization
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} else {
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int W = lab->W;
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int H = lab->H;
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unsigned char * data = image->data;
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#ifdef _OPENMP
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#pragma omp parallel for schedule(dynamic,16) if (multiThread)
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#endif
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for (int i = 0; i < H; i++) {
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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int ix = i * 3 * W;
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float R, G, B;
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float fy, fx, fz, x_, y_, z_, LL;
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for (int j = 0; j < W; j++) {
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//float L1=rL[j],a1=ra[j],b1=rb[j];//for testing
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fy = (0.00862069 * rL[j]) / 327.68 + 0.137932; // (L+16)/116
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fx = (0.002 * ra[j]) / 327.68 + fy;
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fz = fy - (0.005 * rb[j]) / 327.68;
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LL = rL[j] / 327.68;
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x_ = 65535.0 * Color::f2xyz(fx) * Color::D50x;
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// y_ = 65535.0 * Color::f2xyz(fy);
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z_ = 65535.0 * Color::f2xyz(fz) * Color::D50z;
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y_ = (LL > Color::epskap) ? 65535.0 * fy * fy * fy : 65535.0 * LL / Color::kappa;
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Color::xyz2srgb(x_, y_, z_, R, G, B);
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/* copy RGB */
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//int R1=((int)gamma2curve[(R)])
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data[ix++] = ((int)gamma2curve[CLIP(R)]) >> 8;
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data[ix++] = ((int)gamma2curve[CLIP(G)]) >> 8;
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data[ix++] = ((int)gamma2curve[CLIP(B)]) >> 8;
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}
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}
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}
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}
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Image8* ImProcFunctions::lab2rgb (LabImage* lab, int cx, int cy, int cw, int ch, Glib::ustring profile, RenderingIntent intent, bool standard_gamma)
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{
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//gamutmap(lab);
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if (cx < 0) {
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cx = 0;
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}
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if (cy < 0) {
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cy = 0;
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}
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if (cx + cw > lab->W) {
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cw = lab->W - cx;
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}
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if (cy + ch > lab->H) {
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ch = lab->H - cy;
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}
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Image8* image = new Image8 (cw, ch);
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cmsHPROFILE oprof = iccStore->getProfile (profile);
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if (oprof) {
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cmsHPROFILE oprofG = oprof;
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if (standard_gamma) {
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oprofG = ICCStore::makeStdGammaProfile(oprof);
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}
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lcmsMutex->lock ();
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cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
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cmsHTRANSFORM hTransform = cmsCreateTransform (hLab, TYPE_Lab_DBL, oprofG, TYPE_RGB_8, intent,
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cmsFLAGS_NOOPTIMIZE | cmsFLAGS_NOCACHE ); // NOCACHE is important for thread safety
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cmsCloseProfile(hLab);
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lcmsMutex->unlock ();
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unsigned char *data = image->data;
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// cmsDoTransform is relatively expensive
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#ifdef _OPENMP
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#pragma omp parallel
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#endif
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{
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AlignedBuffer<double> pBuf(3 * cw);
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double *buffer = pBuf.data;
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int condition = cy + ch;
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#ifdef _OPENMP
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#pragma omp for firstprivate(lab) schedule(dynamic,16)
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#endif
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for (int i = cy; i < condition; i++) {
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const int ix = i * 3 * cw;
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int iy = 0;
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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for (int j = cx; j < cx + cw; j++) {
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buffer[iy++] = rL[j] / 327.68f;
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buffer[iy++] = ra[j] / 327.68f;
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buffer[iy++] = rb[j] / 327.68f;
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}
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cmsDoTransform (hTransform, buffer, data + ix, cw);
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}
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} // End of parallelization
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cmsDeleteTransform(hTransform);
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if (oprofG != oprof) {
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cmsCloseProfile(oprofG);
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}
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} else {
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double rgb_xyz[3][3];
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for (int i = 0; i < numprof; i++) {
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if (profile == wprofnames[i]) {
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for (int m = 0; m < 3; m++)
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for (int n = 0; n < 3; n++) {
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rgb_xyz[m][n] = iwprof[i][m][n];
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}
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break;
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}
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}
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#ifdef _OPENMP
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#pragma omp parallel for schedule(dynamic,16) if (multiThread)
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#endif
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for (int i = cy; i < cy + ch; i++) {
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float R, G, B;
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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int ix = 3 * i * cw;
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for (int j = cx; j < cx + cw; j++) {
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float fy = (0.00862069 * rL[j]) / 327.68 + 0.137932; // (L+16)/116
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float fx = (0.002 * ra[j]) / 327.68 + fy;
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float fz = fy - (0.005 * rb[j]) / 327.68;
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float LL = rL[j] / 327.68;
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float x_ = 65535.0 * Color::f2xyz(fx) * Color::D50x;
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//float y_ = 65535.0 * Color::f2xyz(fy);
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float z_ = 65535.0 * Color::f2xyz(fz) * Color::D50z;
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float y_ = (LL > Color::epskap) ? 65535.0 * fy * fy * fy : 65535.0 * LL / Color::kappa;
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Color::xyz2rgb(x_, y_, z_, R, G, B, rgb_xyz);
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image->data[ix++] = (int)gamma2curve[CLIP(R)] >> 8;
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image->data[ix++] = (int)gamma2curve[CLIP(G)] >> 8;
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image->data[ix++] = (int)gamma2curve[CLIP(B)] >> 8;
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}
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}
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}
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return image;
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}
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// for default (not gamma)
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Image16* ImProcFunctions::lab2rgb16 (LabImage* lab, int cx, int cy, int cw, int ch, Glib::ustring profile, RenderingIntent intent, bool bw)
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{
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//gamutmap(lab);
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if (cx < 0) {
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cx = 0;
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}
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if (cy < 0) {
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cy = 0;
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}
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if (cx + cw > lab->W) {
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cw = lab->W - cx;
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}
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if (cy + ch > lab->H) {
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ch = lab->H - cy;
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}
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Image16* image = new Image16 (cw, ch);
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cmsHPROFILE oprof = iccStore->getProfile (profile);
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if (oprof) {
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#pragma omp parallel for if (multiThread)
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for (int i = cy; i < cy + ch; i++) {
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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short* xa = (short*)image->r(i - cy);
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short* ya = (short*)image->g(i - cy);
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short* za = (short*)image->b(i - cy);
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for (int j = cx; j < cx + cw; j++) {
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float fy = (0.0086206897f * rL[j]) / 327.68f + 0.1379310345f; // (L+16)/116
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float fx = (0.002 * ra[j]) / 327.68f + fy;
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float fz = fy - (0.005f * rb[j]) / 327.68f;
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float LL = rL[j] / 327.68f;
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float x_ = 65535.0f * (float) Color::f2xyz(fx) * Color::D50x;
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//float y_ = 65535.0 * Color::f2xyz(fy);
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float z_ = 65535.0f * (float) Color::f2xyz(fz) * Color::D50z;
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float y_ = (LL > Color::epskap) ? 65535.0f * fy * fy * fy : 65535.0f * LL / Color::kappa;
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xa[j - cx] = CLIP((int) round(x_));
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ya[j - cx] = CLIP((int) round(y_));
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za[j - cx] = CLIP((int) round(z_));
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if(bw && y_ < 65535.f ) { //force Bw value and take highlight into account
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xa[j - cx] = (int) round(y_ * Color::D50x );
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za[j - cx] = (int) round(y_ * Color::D50z);
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}
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}
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}
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cmsHPROFILE iprof = iccStore->getXYZProfile ();
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lcmsMutex->lock ();
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cmsHTRANSFORM hTransform = cmsCreateTransform (iprof, TYPE_RGB_16, oprof, TYPE_RGB_16, intent, cmsFLAGS_NOOPTIMIZE | cmsFLAGS_NOCACHE);
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lcmsMutex->unlock ();
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image->ExecCMSTransform(hTransform);
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cmsDeleteTransform(hTransform);
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} else {
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#pragma omp parallel for if (multiThread)
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for (int i = cy; i < cy + ch; i++) {
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float R, G, B;
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float* rL = lab->L[i];
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float* ra = lab->a[i];
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float* rb = lab->b[i];
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for (int j = cx; j < cx + cw; j++) {
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float fy = (0.0086206897f * rL[j]) / 327.68f + 0.1379310345f; // (L+16)/116
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float fx = (0.002f * ra[j]) / 327.68f + fy;
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float fz = fy - (0.005f * rb[j]) / 327.68f;
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float LL = rL[j] / 327.68f;
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float x_ = 65535.0f * (float) Color::f2xyz(fx) * Color::D50x;
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//float y_ = 65535.0 * Color::f2xyz(fy);
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float z_ = 65535.0f * (float) Color::f2xyz(fz) * Color::D50z;
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float y_ = (LL > Color::epskap) ? (float) 65535.0f * fy * fy * fy : 65535.0f * LL / Color::kappa;
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Color::xyz2srgb(x_, y_, z_, R, G, B);
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image->r(i - cy, j - cx) = (int)gamma2curve[CLIP(R)];
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image->g(i - cy, j - cx) = (int)gamma2curve[CLIP(G)];
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image->b(i - cy, j - cx) = (int)gamma2curve[CLIP(B)];
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}
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}
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}
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return image;
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}
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// for gamma options (BT709...sRGB linear...)
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Image16* ImProcFunctions::lab2rgb16b (LabImage* lab, int cx, int cy, int cw, int ch, Glib::ustring profile, RenderingIntent intent, Glib::ustring profi, Glib::ustring gam, bool freegamma, double gampos, double slpos, double &ga0, double &ga1, double &ga2, double &ga3, double &ga4, double &ga5, double &ga6, bool bw)
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{
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//gamutmap(lab);
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if (cx < 0) {
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cx = 0;
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}
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if (cy < 0) {
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cy = 0;
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}
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if (cx + cw > lab->W) {
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cw = lab->W - cx;
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}
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if (cy + ch > lab->H) {
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ch = lab->H - cy;
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}
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Image16* image = new Image16 (cw, ch);
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float p1, p2, p3, p4, p5, p6; //primaries
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//double ga0,ga1,ga2,ga3,ga4,ga5=0.0,ga6=0.0;//gamma parameters
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double g_a0, g_a1, g_a2, g_a3, g_a4, g_a5; //gamma parameters
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double pwr;
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double ts;
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ga6 = 0.0;
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pwr = 1.0 / gampos;
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ts = slpos;
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int mode = 0, imax = 0;
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int t50;
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int select_temp = 1; //5003K
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const double eps = 0.000000001; // not divide by zero
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//primaries for 7 working profiles ==> output profiles
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// eventually to adapt primaries if RT used special profiles !
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if(profi == "ProPhoto") {
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p1 = 0.7347; //Prophoto primaries
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p2 = 0.2653;
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p3 = 0.1596;
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p4 = 0.8404;
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p5 = 0.0366;
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p6 = 0.0001;
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select_temp = 1;
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} else if (profi == "WideGamut") {
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p1 = 0.7350; //Widegamut primaries
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p2 = 0.2650;
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p3 = 0.1150;
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p4 = 0.8260;
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p5 = 0.1570;
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p6 = 0.0180;
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select_temp = 1;
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} else if (profi == "Adobe RGB") {
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p1 = 0.6400; //Adobe primaries
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p2 = 0.3300;
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p3 = 0.2100;
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p4 = 0.7100;
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p5 = 0.1500;
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p6 = 0.0600;
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select_temp = 2;
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} else if (profi == "sRGB") {
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p1 = 0.6400; // sRGB primaries
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p2 = 0.3300;
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p3 = 0.3000;
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p4 = 0.6000;
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p5 = 0.1500;
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p6 = 0.0600;
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select_temp = 2;
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} else if (profi == "BruceRGB") {
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p1 = 0.6400; // Bruce primaries
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p2 = 0.3300;
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p3 = 0.2800;
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p4 = 0.6500;
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p5 = 0.1500;
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p6 = 0.0600;
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select_temp = 2;
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} else if (profi == "Beta RGB") {
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p1 = 0.6888; // Beta primaries
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p2 = 0.3112;
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p3 = 0.1986;
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p4 = 0.7551;
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p5 = 0.1265;
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p6 = 0.0352;
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select_temp = 1;
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} else if (profi == "BestRGB") {
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p1 = 0.7347; // Best primaries
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p2 = 0.2653;
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p3 = 0.2150;
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p4 = 0.7750;
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p5 = 0.1300;
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p6 = 0.0350;
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select_temp = 1;
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}
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if (!freegamma) {//if Free gamma not selected
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// gamma : ga0,ga1,ga2,ga3,ga4,ga5 by calcul
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if(gam == "BT709_g2.2_s4.5") {
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ga0 = 2.22; //BT709 2.2 4.5 - my prefered as D.Coffin
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ga1 = 0.909995;
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ga2 = 0.090005;
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ga3 = 0.222222;
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ga4 = 0.081071;
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ga5 = 0.0;
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} else if (gam == "sRGB_g2.4_s12.92") {
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ga0 = 2.40; //sRGB 2.4 12.92 - RT default as Lightroom
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ga1 = 0.947858;
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ga2 = 0.052142;
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ga3 = 0.077399;
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ga4 = 0.039293;
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ga5 = 0.0;
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} else if (gam == "High_g1.3_s3.35") {
|
|
ga0 = 1.3 ; //for high dynamic images
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|
ga1 = 0.998279;
|
|
ga2 = 0.001721;
|
|
ga3 = 0.298507;
|
|
ga4 = 0.005746;
|
|
ga5 = 0.0;
|
|
} else if (gam == "Low_g2.6_s6.9") {
|
|
ga0 = 2.6 ; //gamma 2.6 variable : for low contrast images
|
|
ga1 = 0.891161;
|
|
ga2 = 0.108839;
|
|
ga3 = 0.144928;
|
|
ga4 = 0.076332;
|
|
ga5 = 0.0;
|
|
} else if (gam == "linear_g1.0") {
|
|
ga0 = 1.0; //gamma=1 linear : for high dynamic images (cf : D.Coffin...)
|
|
ga1 = 1.;
|
|
ga2 = 0.;
|
|
ga3 = 1. / eps;
|
|
ga4 = 0.;
|
|
ga5 = 0.0;
|
|
} else if (gam == "standard_g2.2") {
|
|
ga0 = 2.2; //gamma=2.2 (as gamma of Adobe, Widegamut...)
|
|
ga1 = 1.;
|
|
ga2 = 0.;
|
|
ga3 = 1. / eps;
|
|
ga4 = 0.;
|
|
ga5 = 0.0;
|
|
} else if (gam == "standard_g1.8") {
|
|
ga0 = 1.8; //gamma=1.8 (as gamma of Prophoto)
|
|
ga1 = 1.;
|
|
ga2 = 0.;
|
|
ga3 = 1. / eps;
|
|
ga4 = 0.;
|
|
ga5 = 0.0;
|
|
}
|
|
} else { //free gamma selected
|
|
if(slpos == 0) {
|
|
slpos = eps;
|
|
}
|
|
|
|
Color::calcGamma(pwr, ts, mode, imax, g_a0, g_a1, g_a2, g_a3, g_a4, g_a5); // call to calcGamma with selected gamma and slope : return parameters for LCMS2
|
|
ga4 = g_a3 * ts;
|
|
//printf("g_a0=%f g_a1=%f g_a2=%f g_a3=%f g_a4=%f\n", g_a0,g_a1,g_a2,g_a3,g_a4);
|
|
ga0 = gampos;
|
|
ga1 = 1. / (1.0 + g_a4);
|
|
ga2 = g_a4 / (1.0 + g_a4);
|
|
ga3 = 1. / slpos;
|
|
ga5 = 0.0;
|
|
//printf("ga0=%f ga1=%f ga2=%f ga3=%f ga4=%f\n", ga0,ga1,ga2,ga3,ga4);
|
|
|
|
}
|
|
|
|
if(select_temp == 1) {
|
|
t50 = 5003; // for Widegamut, Prophoto Best, Beta D50
|
|
} else if (select_temp == 2) {
|
|
t50 = 6504; // for sRGB, AdobeRGB, Bruce D65
|
|
}
|
|
|
|
cmsCIExyY xyD;
|
|
cmsCIExyYTRIPLE Primaries = {{p1, p2, 1.0},//red primaries
|
|
{p3, p4, 1.0}, // green
|
|
{p5, p6, 1.0} //blue
|
|
};
|
|
cmsToneCurve* GammaTRC[3];
|
|
cmsFloat64Number Parameters[7];
|
|
Parameters[0] = ga0;
|
|
Parameters[1] = ga1;
|
|
Parameters[2] = ga2;
|
|
Parameters[3] = ga3;
|
|
Parameters[4] = ga4;
|
|
Parameters[5] = ga5;
|
|
Parameters[6] = ga6;
|
|
// 7 parameters for smoother curves
|
|
cmsWhitePointFromTemp(&xyD, t50);
|
|
GammaTRC[0] = GammaTRC[1] = GammaTRC[2] = cmsBuildParametricToneCurve(NULL, 5, Parameters);//5 = more smoother than 4
|
|
cmsHPROFILE oprofdef = cmsCreateRGBProfileTHR(NULL, &xyD, &Primaries, GammaTRC); //oprofdef become Outputprofile
|
|
|
|
cmsFreeToneCurve(GammaTRC[0]);
|
|
|
|
|
|
if (oprofdef) {
|
|
#pragma omp parallel for if (multiThread)
|
|
|
|
for (int i = cy; i < cy + ch; i++) {
|
|
float* rL = lab->L[i];
|
|
float* ra = lab->a[i];
|
|
float* rb = lab->b[i];
|
|
short* xa = (short*)image->r(i - cy);
|
|
short* ya = (short*)image->g(i - cy);
|
|
short* za = (short*)image->b(i - cy);
|
|
|
|
for (int j = cx; j < cx + cw; j++) {
|
|
|
|
float fy = (0.0086206897f * rL[j]) / 327.68f + 0.1379310345f; // (L+16)/116
|
|
float fx = (0.002f * ra[j]) / 327.68f + fy;
|
|
float fz = fy - (0.005f * rb[j]) / 327.68f;
|
|
float LL = rL[j] / 327.68f;
|
|
|
|
float x_ = 65535.0f * (float)Color::f2xyz(fx) * Color::D50x;
|
|
// float y_ = 65535.0 * Color::f2xyz(fy);
|
|
float z_ = 65535.0f * (float)Color::f2xyz(fz) * Color::D50z;
|
|
float y_ = (LL > Color::epskap) ? (float) 65535.0 * fy * fy * fy : 65535.0f * LL / Color::kappa;
|
|
|
|
xa[j - cx] = CLIP((int) round(x_)) ;
|
|
ya[j - cx] = CLIP((int) round(y_));
|
|
za[j - cx] = CLIP((int) round(z_));
|
|
|
|
if(bw && y_ < 65535.f) { //force Bw value and take highlight into account
|
|
xa[j - cx] = (int) round(y_ * Color::D50x);
|
|
za[j - cx] = (int) round(y_ * Color::D50z);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
cmsHPROFILE iprof = iccStore->getXYZProfile ();
|
|
lcmsMutex->lock ();
|
|
cmsHTRANSFORM hTransform = cmsCreateTransform (iprof, TYPE_RGB_16, oprofdef, TYPE_RGB_16, intent, cmsFLAGS_NOOPTIMIZE | cmsFLAGS_NOCACHE);
|
|
lcmsMutex->unlock ();
|
|
|
|
image->ExecCMSTransform(hTransform);
|
|
cmsDeleteTransform(hTransform);
|
|
} else {
|
|
//
|
|
#pragma omp parallel for if (multiThread)
|
|
for (int i = cy; i < cy + ch; i++) {
|
|
float R, G, B;
|
|
float* rL = lab->L[i];
|
|
float* ra = lab->a[i];
|
|
float* rb = lab->b[i];
|
|
|
|
for (int j = cx; j < cx + cw; j++) {
|
|
|
|
float fy = (0.0086206897f * rL[j]) / 327.68f + 0.1379310345f; // (L+16)/116
|
|
float fx = (0.002f * ra[j]) / 327.68f + fy;
|
|
float fz = fy - (0.005f * rb[j]) / 327.68f;
|
|
float LL = rL[j] / 327.68f;
|
|
|
|
float x_ = 65535.0f * (float) Color::f2xyz(fx) * Color::D50x;
|
|
//float y_ = 65535.0 * Color::f2xyz(fy);
|
|
float z_ = 65535.0f * (float) Color::f2xyz(fz) * Color::D50z;
|
|
float y_ = (LL > Color::epskap) ? (float) 65535.0 * fy * fy * fy : 65535.0f * LL / Color::kappa;
|
|
|
|
Color::xyz2srgb(x_, y_, z_, R, G, B);
|
|
|
|
image->r(i - cy, j - cx) = (int)gamma2curve[CLIP(R)];
|
|
image->g(i - cy, j - cx) = (int)gamma2curve[CLIP(G)];
|
|
image->b(i - cy, j - cx) = (int)gamma2curve[CLIP(B)];
|
|
}
|
|
}
|
|
}
|
|
|
|
return image;
|
|
}
|
|
|
|
//#include "sRGBgamutbdy.cc"
|
|
|
|
}
|