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Fixed black highlights when increasing Lab saturation on some occasions

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see issue 1025
This commit is contained in:
Oliver Duis
2011-10-02 20:06:58 +02:00
parent f4a6dc5b61
commit 5e1f65ecde
1 changed files with 1 additions and 2 deletions
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3
rtengine/improcfun.cc
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@@ -477,14 +477,13 @@ void ImProcFunctions::chrominanceCurve (LabImage* lold, LabImage* lnew, LUTf & a
float atmp = acurve[lold->a[i][j]+32768.0f]-32768.0f;
float btmp = bcurve[lold->b[i][j]+32768.0f]-32768.0f;
if (params->labCurve.saturation) {
if (params->labCurve.saturation && fabs(atmp)<32768.0f && fabs(btmp)<32768.0f) {
float chroma = sqrt(SQR(atmp)+SQR(btmp)+0.001);
float satfactor = (satcurve[chroma+32768.0f]-32768.0f)/chroma;
atmp *= satfactor;
btmp *= satfactor;
}
//double real_c = 1.0;
if (params->labCurve.avoidclip) {
//Luv limiter
float Y,u,v;