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Add RCD+Bilinear demosaic for Bayer sensors, #5748

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This commit is contained in:
Ingo Weyrich 2020-05-10 12:16:48 +02:00
parent b5af6eec60
commit acc2b3d308
9 changed files with 76 additions and 3 deletions
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1
rtdata/languages/default
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@ -1954,6 +1954,7 @@ TP_RAW_PIXELSHIFTSIGMA_TOOLTIP;The default radius of 1.0 usually fits well for b
TP_RAW_PIXELSHIFTSMOOTH;Smooth transitions
TP_RAW_PIXELSHIFTSMOOTH_TOOLTIP;Smooth transitions between areas with motion and areas without.\nSet to 0 to disable transition smoothing.\nSet to 1 to either get the AMaZE/LMMSE result of the selected frame (depending on whether "Use LMMSE" is selected), or the median of all four frames if "Use median" is selected.
TP_RAW_RCD;RCD
TP_RAW_RCDBILINEAR;RCD+Bilinear
TP_RAW_RCDVNG4;RCD+VNG4
TP_RAW_SENSOR_BAYER_LABEL;Sensor with Bayer Matrix
TP_RAW_SENSOR_XTRANS_DMETHOD_TOOLTIP;3-pass gives best results (recommended for low ISO images).\n1-pass is almost undistinguishable from 3-pass for high ISO images and is faster.\n+fast gives less artifacts in flat areas

1
rtengine/CMakeLists.txt
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@ -63,6 +63,7 @@ set(RTENGINESOURCEFILES
ahd_demosaic_RT.cc
amaze_demosaic_RT.cc
badpixels.cc
bayer_bilinear_demosaic.cc
boxblur.cc
canon_cr3_decoder.cc
CA_correct_RT.cc

58
rtengine/bayer_bilinear_demosaic.cc Normal file
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@ -0,0 +1,58 @@
////////////////////////////////////////////////////////////////
//
// Bilinear bayer demosaic, optimized for speed, intended use is for flat regions of dual-demosaic
//
// copyright (c) 2020 Ingo Weyrich <heckflosse67@gmx.de>
//
//
// code dated: May 09, 2020
//
// bayer_bilinear_demosaic.cc 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.
//
// 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, see <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////
#include "rawimagesource.h"
#define BENCHMARK
#include "StopWatch.h"
using namespace rtengine;
void RawImageSource::bayer_bilinear_demosaic(const array2D<float> &rawData, array2D<float> &red, array2D<float> &green, array2D<float> &blue)
{
BENCHFUN
#ifdef _OPENMP
#pragma omp parallel for
#endif
for (int i = 1; i < H - 1; ++i) {
float **nonGreen1 = red;
float **nonGreen2 = blue;
if (FC(i, 0) == 2 || FC(i, 1) == 2) { // blue row => swap pointers
std::swap(nonGreen1, nonGreen2);
}
#if defined(__clang__)
#pragma clang loop vectorize(assume_safety)
#elif defined(__GNUC__)
#pragma GCC ivdep
#endif
for (int j = 2 - (FC(i, 1) & 1); j < W - 2; j += 2) { // always begin with a green pixel
green[i][j] = rawData[i][j];
nonGreen1[i][j] = (rawData[i][j - 1] + rawData[i][j + 1]) * 0.5f;
nonGreen2[i][j] = (rawData[i - 1][j] + rawData[i + 1][j]) * 0.5f;
green[i][j + 1] = ((rawData[i - 1][j + 1] + rawData[i][j]) + (rawData[i][j + 2] + rawData[i + 1][j + 1])) * 0.25f;
nonGreen1[i][j + 1] = rawData[i][j + 1];
nonGreen2[i][j + 1] = ((rawData[i - 1][j] + rawData[i - 1][j + 2]) + (rawData[i + 1][j] + rawData[i + 1][j + 2])) * 0.25f;
}
}
border_interpolate(W, H, 2, rawData, red, green, blue);
}

12
rtengine/dual_demosaic_RT.cc
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@ -33,7 +33,7 @@
#include "../rtgui/options.h"
//#define BENCHMARK
#define BENCHMARK
#include "StopWatch.h"
using namespace std;
@ -52,6 +52,8 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
amaze_demosaic_RT(0, 0, winw, winh, rawData, red, green, blue, options.chunkSizeAMAZE, options.measure);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::DCBVNG4) ) {
dcb_demosaic(raw.bayersensor.dcb_iterations, raw.bayersensor.dcb_enhance);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDBILINEAR) ) {
rcd_demosaic(options.chunkSizeRCD, options.measure);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDVNG4) ) {
rcd_demosaic(options.chunkSizeRCD, options.measure);
}
@ -73,6 +75,8 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
amaze_demosaic_RT(0, 0, winw, winh, rawData, red, green, blue, options.chunkSizeAMAZE, options.measure);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::DCBVNG4) ) {
dcb_demosaic(raw.bayersensor.dcb_iterations, raw.bayersensor.dcb_enhance);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDBILINEAR) ) {
rcd_demosaic(options.chunkSizeRCD, options.measure);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDVNG4) ) {
rcd_demosaic(options.chunkSizeRCD, options.measure);
}
@ -113,7 +117,11 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
array2D<float> blueTmp(winw, winh);
if (isBayer) {
vng4_demosaic(rawData, redTmp, greenTmp, blueTmp);
if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDBILINEAR) ) {
bayer_bilinear_demosaic(rawData, redTmp, greenTmp, blueTmp);
} else {
vng4_demosaic(rawData, redTmp, greenTmp, blueTmp);
}
} else {
fast_xtrans_interpolate(rawData, redTmp, greenTmp, blueTmp);
}

1
rtengine/procparams.cc
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@ -2717,6 +2717,7 @@ const std::vector<const char*>& RAWParams::BayerSensor::getMethodStrings()
"amaze",
"amazevng4",
"rcd",
"rcdbilinear",
"rcdvng4",
"dcb",
"dcbvng4",

1
rtengine/procparams.h
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@ -1395,6 +1395,7 @@ struct RAWParams {
AMAZE,
AMAZEVNG4,
RCD,
RCDBILINEAR,
RCDVNG4,
DCB,
DCBVNG4,

1
rtengine/rawimagesource.cc
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@ -1575,6 +1575,7 @@ void RawImageSource::demosaic(const RAWParams &raw, bool autoContrast, double &c
amaze_demosaic_RT (0, 0, W, H, rawData, red, green, blue, options.chunkSizeAMAZE, options.measure);
} else if (raw.bayersensor.method == RAWParams::BayerSensor::getMethodString(RAWParams::BayerSensor::Method::AMAZEVNG4)
|| raw.bayersensor.method == RAWParams::BayerSensor::getMethodString(RAWParams::BayerSensor::Method::DCBVNG4)
|| raw.bayersensor.method == RAWParams::BayerSensor::getMethodString(RAWParams::BayerSensor::Method::RCDBILINEAR)
|| raw.bayersensor.method == RAWParams::BayerSensor::getMethodString(RAWParams::BayerSensor::Method::RCDVNG4)) {
if (!autoContrast) {
double threshold = raw.bayersensor.dualDemosaicContrast;

1
rtengine/rawimagesource.h
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@ -300,6 +300,7 @@ protected:
void xtrans_interpolate (const int passes, const bool useCieLab, size_t chunkSize = 1, bool measure = false);
void fast_xtrans_interpolate (const array2D<float> &rawData, array2D<float> &red, array2D<float> &green, array2D<float> &blue);
void pixelshift(int winx, int winy, int winw, int winh, const procparams::RAWParams &rawParams, unsigned int frame, const std::string &make, const std::string &model, float rawWpCorrection);
void bayer_bilinear_demosaic(const array2D<float> &rawData, array2D<float> &red, array2D<float> &green, array2D<float> &blue);
void hflip (Imagefloat* im);
void vflip (Imagefloat* im);
void getRawValues(int x, int y, int rotate, int &R, int &G, int &B) override;

3
rtgui/bayerprocess.cc
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@ -365,6 +365,7 @@ void BayerProcess::read(const rtengine::procparams::ProcParams* pp, const Params
lmmseOptions->set_visible(pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::LMMSE));
dualDemosaicOptions->set_visible(pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::AMAZEVNG4)
|| pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::DCBVNG4)
|| pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDBILINEAR)
|| pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDVNG4));
if (pp->raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::PIXELSHIFT)) {
pixelShiftOptions->set_visible(pp->raw.bayersensor.pixelShiftMotionCorrectionMethod == RAWParams::BayerSensor::PSMotionCorrectionMethod::CUSTOM);
@ -573,7 +574,7 @@ void BayerProcess::methodChanged ()
lmmseOptions->hide();
}
if (currentMethod == procparams::RAWParams::BayerSensor::Method::AMAZEVNG4 || currentMethod == procparams::RAWParams::BayerSensor::Method::DCBVNG4 || currentMethod == procparams::RAWParams::BayerSensor::Method::RCDVNG4) {
if (currentMethod == procparams::RAWParams::BayerSensor::Method::AMAZEVNG4 || currentMethod == procparams::RAWParams::BayerSensor::Method::DCBVNG4 || currentMethod == procparams::RAWParams::BayerSensor::Method::RCDVNG4 || currentMethod == procparams::RAWParams::BayerSensor::Method::RCDBILINEAR) {
dualDemosaicOptions->show();
} else {
dualDemosaicOptions->hide();