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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);
}