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Bugfix for Lab saturation limiter; improvements to Green Equilibration. Bugfix for building in XCode.

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This commit is contained in:
Emil Martinec
2011-02-13 14:32:09 -06:00
parent 4b9a9eda13
commit d2eb8bd48a
12 changed files with 161 additions and 220 deletions
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30
rtengine/curves.cc
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@@ -302,7 +302,7 @@ void Curve::getVal (const std::vector<double>& t, std::vector<double>& res) {
}
void CurveFactory::complexsgnCurve (double saturation, const std::vector<double>& curvePoints, float* outCurve, int skip) {
void CurveFactory::complexsgnCurve (double saturation, bool satlimit, double satlimthresh, const std::vector<double>& curvePoints, float* outCurve, int skip) {
//colormult = chroma_scale for Lab manipulations
@@ -316,14 +316,32 @@ void CurveFactory::complexsgnCurve (double saturation, const std::vector<double>
std::vector<double> satcurvePoints;
satcurvePoints.push_back((double)((CurveType)NURBS));
if (saturation>0) {
double satslope = (0.5+2*saturation/500.0)/(0.5-2*saturation/500.0);
double scale = (satlimthresh/100.1);
if (!satlimit) scale=100/100.1;
satcurvePoints.push_back(0); //black point. Value in [0 ; 1] range
satcurvePoints.push_back(0); //black point. Value in [0 ; 1] range
satcurvePoints.push_back(0.25+saturation/500.0); //toe point
satcurvePoints.push_back(0.25-saturation/500.0); //value at toe point
satcurvePoints.push_back(0.75-saturation/500.0); //shoulder point
satcurvePoints.push_back(0.75+saturation/500.0); //value at shoulder point
//if (satlimit) {
satcurvePoints.push_back(0.5-0.5*scale); //toe point
satcurvePoints.push_back(0.5-0.5*scale); //value at toe point
satcurvePoints.push_back(0.5-(0.5/satslope)*scale); //toe point
satcurvePoints.push_back(0.5-0.5*scale); //value at toe point
satcurvePoints.push_back(0.5+(0.5/satslope)*scale); //shoulder point
satcurvePoints.push_back(0.5+0.5*scale); //value at shoulder point
satcurvePoints.push_back(0.5+0.5*scale); //shoulder point
satcurvePoints.push_back(0.5+0.5*scale); //value at shoulder point
/*} else {
satcurvePoints.push_back(0.25+saturation/500.0); //toe point
satcurvePoints.push_back(0.25-saturation/500.0); //value at toe point
satcurvePoints.push_back(0.75-saturation/500.0); //shoulder point
satcurvePoints.push_back(0.75+saturation/500.0); //value at shoulder point
}*/
satcurvePoints.push_back(1); // white point
satcurvePoints.push_back(1); // value at white point