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Speedup for bilinear dual demosaicers, #5748

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This commit is contained in:
Ingo Weyrich
2020-05-25 16:28:04 +02:00
parent bf30ca6c05
commit 1c11db3fc9
3 changed files with 17 additions and 12 deletions
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16
rtengine/bayer_bilinear_demosaic.cc
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@@ -23,12 +23,13 @@
////////////////////////////////////////////////////////////////
#include "rawimagesource.h"
#include "rt_math.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)
void RawImageSource::bayer_bilinear_demosaic(const float* const * blend, const array2D<float> &rawData, array2D<float> &red, array2D<float> &green, array2D<float> &blue)
{
BENCHFUN
#ifdef _OPENMP
@@ -46,13 +47,12 @@ BENCHFUN
#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;
green[i][j] = intp(blend[i][j], green[i][j], rawData[i][j]);
nonGreen1[i][j] = intp(blend[i][j], nonGreen1[i][j], (rawData[i][j - 1] + rawData[i][j + 1]) * 0.5f);
nonGreen2[i][j] = intp(blend[i][j], nonGreen2[i][j], (rawData[i - 1][j] + rawData[i + 1][j]) * 0.5f);
green[i][j + 1] = intp(blend[i][j + 1], 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] = intp(blend[i][j + 1], nonGreen1[i][j + 1], rawData[i][j + 1]);
nonGreen2[i][j + 1] = intp(blend[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);
}

11
rtengine/dual_demosaic_RT.cc
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@@ -112,18 +112,23 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
contrast = contrastf * 100.f;
array2D<float>& redTmp = L; // L is not needed anymore => reuse it
array2D<float> greenTmp(winw, winh);
array2D<float> blueTmp(winw, winh);
array2D<float> greenTmp;
array2D<float> blueTmp;
if (isBayer) {
if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::AMAZEBILINEAR) ||
raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::RCDBILINEAR) ||
raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::DCBBILINEAR)) {
bayer_bilinear_demosaic(rawData, redTmp, greenTmp, blueTmp);
bayer_bilinear_demosaic(blend, rawData, red, green, blue);
return;
} else {
greenTmp(winw, winh);
blueTmp(winw, winh);
vng4_demosaic(rawData, redTmp, greenTmp, blueTmp);
}
} else {
greenTmp(winw, winh);
blueTmp(winw, winh);
fast_xtrans_interpolate(rawData, redTmp, greenTmp, blueTmp);
}

2
rtengine/rawimagesource.h
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@@ -300,7 +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 bayer_bilinear_demosaic(const float *const * blend, 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;