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rawTherapee/rtengine/rawimagesource_i.h
Hombre 8b2eac9a3d Pipette and "On Preview Widgets" branch. See issue 227 
The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
2014-01-21 23:37:36 +01:00

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9.7 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 RAWIMAGESOURCE_I_H_INCLUDED
#define RAWIMAGESOURCE_I_H_INCLUDED
#include "rawimagesource.h"
#include "curves.h"
namespace rtengine {
inline void RawImageSource::convert_row_to_YIQ (float* r, float* g, float* b, float* Y, float* I, float* Q, int W) {
for (int j=0; j<W; j++) {
Y[j] = .299 * r[j] + .587 * g[j] + .114 * b[j];
I[j] = .596 * r[j] - .275 * g[j] - .321 * b[j];
Q[j] = .212 * r[j] - .523 * g[j] + .311 * b[j];
}
}
inline void RawImageSource::convert_row_to_RGB (float* r, float* g, float* b, float* Y, float* I, float* Q, int W) {
for (int j=1; j<W-1; j++) {
r[j] = Y[j] + 0.956*I[j] + 0.621*Q[j];
g[j] = Y[j] - 0.272*I[j] - 0.647*Q[j];
b[j] = Y[j] - 1.105*I[j] + 1.702*Q[j];
}
}
inline void RawImageSource::convert_to_cielab_row (float* ar, float* ag, float* ab, float* oL, float* oa, float* ob) {
for (int j=0; j<W; j++) {
double r = ar[j];
double g = ag[j];
double b = ab[j];
double x = lc00 * r + lc01 * g + lc02 * b;
double y = lc10 * r + lc11 * g + lc12 * b;
double z = lc20 * r + lc21 * g + lc22 * b;
if (y>threshold)
oL[j] = cache[(int)y];
else
oL[j] = float(903.3 * y / MAXVALD);
oa[j] = float(500.0 * ((x>threshold ? cache[(int)x] : 7.787*x/MAXVALD+16.0/116.0) - (y>threshold ? cache[(int)y] : 7.787*y/MAXVALD+16.0/116.0)));
ob[j] = float(200.0 * ((y>threshold ? cache[(int)y] : 7.787*y/MAXVALD+16.0/116.0) - (z>threshold ? cache[(int)z] : 7.787*z/MAXVALD+16.0/116.0)));
}
}
inline void RawImageSource::interpolate_row_g (float* agh, float* agv, int i) {
for (int j=0; j<W; j++) {
if (ri->ISGREEN(i,j)) {
agh[j] = rawData[i][j];
agv[j] = rawData[i][j];
}
else {
int gh=0;
int gv=0;
if (j>1 && j<W-2) {
gh = (-rawData[i][j-2] + 2*rawData[i][j-1] + 2*rawData[i][j] + 2*rawData[i][j+1] -rawData[i][j+2]) / 4;
int maxgh = max(rawData[i][j-1], rawData[i][j+1]);
int mingh = min(rawData[i][j-1], rawData[i][j+1]);
if (gh>maxgh)
gh = maxgh;
else if (gh<mingh)
gh = mingh;
}
else if (j==0)
gh = rawData[i][1];
else if (j==1)
gh = (rawData[i][0] + rawData[i][2]) / 2;
else if (j==W-1)
gh = rawData[i][W-2];
else if (j==W-2)
gh = (rawData[i][W-1] + rawData[i][W-3]) / 2;
if (i>1 && i<H-2) {
gv = (-rawData[i-2][j] + 2*rawData[i-1][j] + 2*rawData[i][j] + 2*rawData[i+1][j] - rawData[i+2][j]) / 4;
int maxgv = max(rawData[i-1][j], rawData[i+1][j]);
int mingv = min(rawData[i-1][j], rawData[i+1][j]);
if (gv>maxgv)
gv = maxgv;
else if (gv<mingv)
gv = mingv;
}
else if (i==0)
gv = rawData[1][j];
else if (i==1)
gv = (rawData[0][j] + rawData[2][j]) / 2;
else if (i==H-1)
gv = rawData[H-2][j];
else if (i==H-2)
gv = (rawData[H-1][j] + rawData[H-3][j]) / 2;
agh[j] = gh;
agv[j] = gv;
}
}
}
inline void RawImageSource::interpolate_row_rb (float* ar, float* ab, float* pg, float* cg, float* ng, int i) {
if (ri->ISRED(i,0) || ri->ISRED(i,1)) {
// RGRGR or GRGRGR line
for (int j=0; j<W; j++) {
if (ri->ISRED(i,j)) {
// red is simple
ar[j] = rawData[i][j];
// blue: cross interpolation
int b = 0;
int n = 0;
if (i>0 && j>0) {
b += rawData[i-1][j-1] - pg[j-1];
n++;
}
if (i>0 && j<W-1) {
b += rawData[i-1][j+1] - pg[j+1];
n++;
}
if (i<H-1 && j>0) {
b += rawData[i+1][j-1] - ng[j-1];
n++;
}
if (i<H-1 && j<W-1) {
b += rawData[i+1][j+1] - ng[j+1];
n++;
}
b = cg[j] + b / n;
ab[j] = b;
}
else {
// linear R-G interp. horizontally
int r;
if (j==0)
r = cg[0] + rawData[i][1] - cg[1];
else if (j==W-1)
r = cg[W-1] + rawData[i][W-2] - cg[W-2];
else
r = cg[j] + (rawData[i][j-1] - cg[j-1] + rawData[i][j+1] - cg[j+1]) / 2;
ar[j] = CLIP(r);
// linear B-G interp. vertically
int b;
if (i==0)
b = ng[j] + rawData[1][j] - cg[j];
else if (i==H-1)
b = pg[j] + rawData[H-2][j] - cg[j];
else
b = cg[j] + (rawData[i-1][j] - pg[j] + rawData[i+1][j] - ng[j]) / 2;
ab[j] = b;
}
}
}
else {
// BGBGB or GBGBGB line
for (int j=0; j<W; j++) {
if (ri->ISBLUE(i,j)) {
// red is simple
ab[j] = rawData[i][j];
// blue: cross interpolation
int r = 0;
int n = 0;
if (i>0 && j>0) {
r += rawData[i-1][j-1] - pg[j-1];
n++;
}
if (i>0 && j<W-1) {
r += rawData[i-1][j+1] - pg[j+1];
n++;
}
if (i<H-1 && j>0) {
r += rawData[i+1][j-1] - ng[j-1];
n++;
}
if (i<H-1 && j<W-1) {
r += rawData[i+1][j+1] - ng[j+1];
n++;
}
r = cg[j] + r / n;
ar[j] = r;
}
else {
// linear B-G interp. horizontally
int b;
if (j==0)
b = cg[0] + rawData[i][1] - cg[1];
else if (j==W-1)
b = cg[W-1] + rawData[i][W-2] - cg[W-2];
else
b = cg[j] + (rawData[i][j-1] - cg[j-1] + rawData[i][j+1] - cg[j+1]) / 2;
ab[j] = CLIP(b);
// linear R-G interp. vertically
int r;
if (i==0)
r = ng[j] + rawData[1][j] - cg[j];
else if (i==H-1)
r = pg[j] + rawData[H-2][j] - cg[j];
else
r = cg[j] + (rawData[i-1][j] - pg[j] + rawData[i+1][j] - ng[j]) / 2;
ar[j] = r;
}
}
}
}
inline void RawImageSource::interpolate_row_rb_mul_pp (float* ar, float* ab, float* pg, float* cg, float* ng, int i, double r_mul, double g_mul, double b_mul, int x1, int width, int skip) {
if (ri->ISRED(i,0) || ri->ISRED(i,1)) {
// RGRGR or GRGRGR line
for (int j=x1, jx=0; jx<width; j+=skip, jx++) {
if (ri->ISRED(i,j)) {
// red is simple
ar[jx] = r_mul * rawData[i][j];
// blue: cross interpolation
int b = 0;
int n = 0;
if (i>0 && j>0) {
b += b_mul*rawData[i-1][j-1] - g_mul*pg[j-1];
n++;
}
if (i>0 && j<W-1) {
b += b_mul*rawData[i-1][j+1] - g_mul*pg[j+1];
n++;
}
if (i<H-1 && j>0) {
b += b_mul*rawData[i+1][j-1] - g_mul*ng[j-1];
n++;
}
if (i<H-1 && j<W-1) {
b += b_mul*rawData[i+1][j+1] - g_mul*ng[j+1];
n++;
}
b = g_mul*cg[j] + b / n;
ab[jx] = b;
}
else {
// linear R-G interp. horizontally
int r;
if (j==0)
r = g_mul*cg[0] + r_mul*rawData[i][1] - g_mul*cg[1];
else if (j==W-1)
r = g_mul*cg[W-1] + r_mul*rawData[i][W-2] - g_mul*cg[W-2];
else
r = g_mul*cg[j] + (r_mul*rawData[i][j-1] - g_mul*cg[j-1] + r_mul*rawData[i][j+1] - g_mul*cg[j+1]) / 2;
ar[jx] = r;
// linear B-G interp. vertically
int b;
if (i==0)
b = g_mul*ng[j] + b_mul*rawData[1][j] - g_mul*cg[j];
else if (i==H-1)
b = g_mul*pg[j] + b_mul*rawData[H-2][j] - g_mul*cg[j];
else
b = g_mul*cg[j] + (b_mul*rawData[i-1][j] - g_mul*pg[j] + b_mul*rawData[i+1][j] - g_mul*ng[j]) / 2;
ab[jx] = b;
}
}
}
else {
// BGBGB or GBGBGB line
for (int j=x1, jx=0; jx<width; j+=skip, jx++) {
if (ri->ISBLUE(i,j)) {
// red is simple
ab[jx] = b_mul*rawData[i][j];
// blue: cross interpolation
int r = 0;
int n = 0;
if (i>0 && j>0) {
r += r_mul*rawData[i-1][j-1] - g_mul*pg[j-1];
n++;
}
if (i>0 && j<W-1) {
r += r_mul*rawData[i-1][j+1] - g_mul*pg[j+1];
n++;
}
if (i<H-1 && j>0) {
r += r_mul*rawData[i+1][j-1] - g_mul*ng[j-1];
n++;
}
if (i<H-1 && j<W-1) {
r += r_mul*rawData[i+1][j+1] - g_mul*ng[j+1];
n++;
}
r = g_mul*cg[j] + r / n;
ar[jx] = r;
}
else {
// linear B-G interp. horizontally
int b;
if (j==0)
b = g_mul*cg[0] + b_mul*rawData[i][1] - g_mul*cg[1];
else if (j==W-1)
b = g_mul*cg[W-1] + b_mul*rawData[i][W-2] - g_mul*cg[W-2];
else
b = g_mul*cg[j] + (b_mul*rawData[i][j-1] - g_mul*cg[j-1] + b_mul*rawData[i][j+1] - g_mul*cg[j+1]) / 2;
ab[jx] = b;
// linear R-G interp. vertically
int r;
if (i==0)
r = g_mul*ng[j] + r_mul*rawData[1][j] - g_mul*cg[j];
else if (i==H-1)
r = g_mul*pg[j] + r_mul*rawData[H-2][j] - g_mul*cg[j];
else
r = g_mul*cg[j] + (r_mul*rawData[i-1][j] - g_mul*pg[j] + r_mul*rawData[i+1][j] - g_mul*ng[j]) / 2;
ar[jx] = r;
}
}
}
}
}
#endif
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