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Optimize speed FFTW local contrast

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This commit is contained in:
Desmis 2019-06-29 06:27:58 +02:00
parent 50a54e3cfc
commit 2f9f6e088a
1 changed files with 75 additions and 15 deletions
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90
rtengine/iplocallab.cc
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@ -241,6 +241,7 @@ struct local_params {
bool equtm;
bool invshar;
bool actsp;
bool ftwlc;
float str;
int qualmet;
int qualcurvemet;
@ -584,6 +585,7 @@ static void calcLocalParams(int sp, int oW, int oH, const LocallabParams& locall
bool inverseex = locallab.spots.at(sp).inversex;
bool inversesh = locallab.spots.at(sp).inverssh;
bool equiltm = locallab.spots.at(sp).equiltm;
bool fftwlc = locallab.spots.at(sp).fftwlc;
bool equilret = locallab.spots.at(sp).equilret;
bool inverserad = false; // Provision
@ -764,6 +766,7 @@ static void calcLocalParams(int sp, int oW, int oH, const LocallabParams& locall
lp.hltonalhs = hltonahs;
lp.shtonalhs = shtonals;
lp.senshs = local_sensihs;
lp.ftwlc = fftwlc;
}
static void calcTransitionrect(const float lox, const float loy, const float ach, const local_params& lp, int &zone, float &localFactor)
@ -6501,19 +6504,76 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
//local contrast
if (lp.lcamount > 0.f && call < 3 && lp.lcena) {
const int ystart = std::max(static_cast<int>(lp.yc - lp.lyT) - cy, 0);
const int yend = std::min(static_cast<int>(lp.yc + lp.ly) - cy, original->H);
const int xstart = std::max(static_cast<int>(lp.xc - lp.lxL) - cx, 0);
const int xend = std::min(static_cast<int>(lp.xc + lp.lx) - cx, original->W);
const int bfh = yend - ystart;
const int bfw = xend - xstart;
int ystart = std::max(static_cast<int>(lp.yc - lp.lyT) - cy, 0);
int yend = std::min(static_cast<int>(lp.yc + lp.ly) - cy, original->H);
int xstart = std::max(static_cast<int>(lp.xc - lp.lxL) - cx, 0);
int xend = std::min(static_cast<int>(lp.xc + lp.lx) - cx, original->W);
int bfh = yend - ystart;
int bfw = xend - xstart;
int bfhr = bfh;
int bfwr = bfw;
bool reduH = false;
bool reduW = false;
if(lp.ftwlc){
int ftsizeH = 1;
int ftsizeW = 1;
for (int ft=0; ft < N_fftwsize; ft++) {//find best values
if(fftw_size[ft] <= bfh) {
ftsizeH = fftw_size[ft];
break;
}
}
for (int ft=0; ft < N_fftwsize; ft++) {
if(fftw_size[ft] <= bfw) {
ftsizeW = fftw_size[ft];
break;
}
}
//printf("FTsizeH =%i FTsizeW=%i \n", ftsizeH, ftsizeW);
//optimize with size fftw
if(ystart == 0 && yend < original->H) lp.ly -= (bfh - ftsizeH);
else if (ystart != 0 && yend == original->H) lp.lyT -= (bfh - ftsizeH);
else if(ystart != 0 && yend != original->H) {
if(lp.ly <= lp.lyT) lp.lyT -= (bfh - ftsizeH);
else lp.ly -= (bfh - ftsizeH);
}
else if(ystart == 0 && yend == original->H) {
bfhr = ftsizeH;
reduH = true;
}
if(xstart == 0 && xend < original->W) lp.lx -= (bfw - ftsizeW);
else if(xstart != 0 && xend == original->W) lp.lxL -= (bfw - ftsizeW);
else if(xstart != 0 && xend != original->W) {
if(lp.lx <= lp.lxL) lp.lxL -= (bfw - ftsizeW);
else lp.lx -= (bfw - ftsizeW);
}
else if(xstart == 0 && xend == original->W) {
bfwr = ftsizeW;
reduW = true;
}
//new values optimized
ystart = std::max(static_cast<int>(lp.yc - lp.lyT) - cy, 0);
yend = std::min(static_cast<int>(lp.yc + lp.ly) - cy, original->H);
xstart = std::max(static_cast<int>(lp.xc - lp.lxL) - cx, 0);
xend = std::min(static_cast<int>(lp.xc + lp.lx) - cx, original->W);
bfh = bfhr = yend - ystart;
bfw = bfwr = xend - xstart;
if(reduH) {
bfhr = ftsizeH;
}
if(reduW) {
bfwr = ftsizeW;
}
}
if (bfw > 0 && bfh > 0) {
array2D<float> buflight(bfw, bfh);
JaggedArray<float> bufchro(bfw, bfh);
std::unique_ptr<LabImage> bufgb(new LabImage(bfw, bfh));
std::unique_ptr<LabImage> tmp1(new LabImage(bfw, bfh));
array2D<float> buflight(bfwr, bfhr);
JaggedArray<float> bufchro(bfwr, bfhr);
std::unique_ptr<LabImage> bufgb(new LabImage(bfwr, bfhr));
std::unique_ptr<LabImage> tmp1(new LabImage(bfwr, bfhr));
#ifdef _OPENMP
#pragma omp parallel for schedule(dynamic,16)
@ -6539,15 +6599,15 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
localContrastParams.lightness = params->locallab.spots.at(sp).lightness;
bool fftwlc = false;
if(params->locallab.spots.at(sp).fftwlc) fftwlc = true;
ImProcFunctions::localContrast(tmp1.get(), tmp1->L, localContrastParams, fftwlc, sk);
ImProcFunctions::localContrast(tmp1.get(), tmp1->L, localContrastParams, fftwlc, sk);
float minL = tmp1->L[0][0] - bufgb->L[0][0];
float maxL = minL;
#ifdef _OPENMP
#pragma omp parallel for reduction(max:maxL) reduction(min:minL) schedule(dynamic,16)
#endif
for (int ir = 0; ir < bfh; ir++) {
for (int jr = 0; jr < bfw; jr++) {
for (int ir = 0; ir < bfhr; ir++) {
for (int jr = 0; jr < bfwr; jr++) {
buflight[ir][jr] = tmp1->L[ir][jr] - bufgb->L[ir][jr];
bufchro[ir][jr] = sqrt(SQR(tmp1->a[ir][jr]) + SQR(tmp1->b[ir][jr])) - sqrt(SQR(bufgb->a[ir][jr]) + SQR(bufgb->b[ir][jr]));
minL = rtengine::min(minL, buflight[ir][jr]);
@ -6559,8 +6619,8 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
#pragma omp parallel for schedule(dynamic,16)
#endif
for (int y = 0; y < bfh; y++) {
for (int x = 0; x < bfw; x++) {
for (int y = 0; y < bfhr; y++) {
for (int x = 0; x < bfwr; x++) {
buflight[y][x] /= coef;
}
}