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Colortoning lab regions: Move guid fill into main loop, #4914

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This commit is contained in:
heckflosse
2018-11-02 19:02:05 +01:00
parent 47d6ee44f8
commit e199d1ea10
1 changed files with 16 additions and 28 deletions
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44
rtengine/iplabregions.cc
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@@ -87,6 +87,7 @@ BENCHFUN
abmask[i](lab->W, lab->H);
Lmask[i](lab->W, lab->H);
}
array2D<float> guide(lab->W, lab->H);
#ifdef _OPENMP
#pragma omp parallel if (multiThread)
@@ -99,7 +100,7 @@ BENCHFUN
constexpr float c_factor = 327.68f / 48000.f;
#endif
#ifdef _OPENMP
#pragma omp for
#pragma omp for schedule(dynamic, 16)
#endif
for (int y = 0; y < lab->H; ++y) {
#ifdef __SSE2__
@@ -108,53 +109,40 @@ BENCHFUN
fastlin2log(cBuffer, c_factor, 10.f, lab->W);
#endif
for (int x = 0; x < lab->W; ++x) {
float l = lab->L[y][x];
float l = lab->L[y][x] / 32768.f;
guide[y][x] = LIM01(l);
#ifdef __SSE2__
// use precalculated values
float c1 = cBuffer[x];
float c = cBuffer[x];
float h = hBuffer[x];
#else
// magic constant c_factor: normally chromaticity is in [0; 42000] (see color.h), but here we use the constant to match how the chromaticity pipette works (see improcfun.cc lines 4705-4706 and color.cc line 1930
constexpr float c_factor = 327.68f / 48000.f;
float a = lab->a[y][x];
float b = lab->b[y][x];
float c, h;
Color::Lab2Lch(a, b, c, h);
float c1 = xlin2log(c * c_factor, 10.f);
Color::Lab2Lch(lab->a[y][x], lab->b[y][x], c, h);
c = xlin2log(c * c_factor, 10.f);
#endif
float h1 = Color::huelab_to_huehsv2(h);
h1 = h1 + 1.f/6.f; // offset the hue because we start from purple instead of red
if (h1 > 1.f) {
h1 -= 1.f;
h = Color::huelab_to_huehsv2(h);
h += 1.f/6.f; // offset the hue because we start from purple instead of red
if (h > 1.f) {
h -= 1.f;
}
h1 = xlin2log(h1, 3.f);
float l1 = l / 32768.f;
h = xlin2log(h, 3.f);
for (int i = begin_idx; i < end_idx; ++i) {
auto &hm = hmask[i];
auto &cm = cmask[i];
auto &lm = lmask[i];
float blend = LIM01((hm ? hm->getVal(h1) : 1.f) * (cm ? cm->getVal(c1) : 1.f) * (lm ? lm->getVal(l1) : 1.f));
float blend = LIM01((hm ? hm->getVal(h) : 1.f) * (cm ? cm->getVal(c) : 1.f) * (lm ? lm->getVal(l) : 1.f));
Lmask[i][y][x] = abmask[i][y][x] = blend;
}
}
}
}
{
array2D<float> guide(lab->W, lab->H, lab->L);
#ifdef _OPENMP
#pragma omp parallel for if (multiThread)
#endif
for (int y = 0; y < lab->H; ++y) {
for (int x = 0; x < lab->W; ++x) {
guide[y][x] = LIM01(lab->L[y][x] / 32768.f);
}
}
for (int i = begin_idx; i < end_idx; ++i) {
rtengine::guidedFilter(guide, abmask[i], abmask[i], max(int(4 / scale + 0.5), 1), 0.001, multiThread);
rtengine::guidedFilter(guide, Lmask[i], Lmask[i], max(int(25 / scale + 0.5), 1), 0.0001, multiThread);
}
for (int i = begin_idx; i < end_idx; ++i) {
rtengine::guidedFilter(guide, abmask[i], abmask[i], max(int(4 / scale + 0.5), 1), 0.001, multiThread);
rtengine::guidedFilter(guide, Lmask[i], Lmask[i], max(int(25 / scale + 0.5), 1), 0.0001, multiThread);
}
if (show_mask_idx >= 0) {