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FFTW blur for local contrast

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This commit is contained in:
Desmis
2019-06-28 14:26:51 +02:00
parent f2380e26e1
commit b54312c2eb
15 changed files with 155 additions and 31 deletions
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15
rtengine/iplocalcontrast.cc
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@@ -33,8 +33,9 @@
namespace rtengine
{
LocallabParams locallab; ///< Local lab parameters
void ImProcFunctions::localContrast(LabImage *lab, float **destination, const LocalContrastParams &localContrastParams, double scale)
void ImProcFunctions::localContrast(LabImage *lab, float **destination, const LocalContrastParams &localContrastParams, bool fftwlc, double scale)
{
if (!localContrastParams.enabled) {
return;
@@ -46,13 +47,17 @@ void ImProcFunctions::localContrast(LabImage *lab, float **destination, const Lo
const float dark = localContrastParams.darkness;
const float light = localContrastParams.lightness;
array2D<float> buf(width, height);
const float sigma = localContrastParams.radius / scale;
float sigma = localContrastParams.radius / scale;
//printf("wi%i he=%i am=%f da=%f li=%f si=%f\n", width, height, a, dark, light, sigma);
if(!fftwlc) {
#ifdef _OPENMP
#pragma omp parallel if(multiThread)
#pragma omp parallel if(multiThread)
#endif
gaussianBlur(lab->L, buf, width, height, sigma);
gaussianBlur(lab->L, buf, width, height, sigma);
} else {
sigma *= 50.f;//approximation to convert sigma "gaussianBlur" to FFTW blur
ImProcFunctions::fftw_convol_blur2(lab->L, buf, width, height, sigma, 0);
}
#ifdef _OPENMP
#pragma omp parallel for if(multiThread)
#endif