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Comment on use of deltaE

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Desmis
2019-04-18 09:49:10 +02:00
parent d78ed42ee0
commit 4a01c5a52b
1 changed files with 34 additions and 1 deletions
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35
rtengine/iplocallab.cc
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@@ -2582,7 +2582,22 @@ void ImProcFunctions::transit_shapedetect(int senstype, const LabImage *bufexpor
const float realstradE = reducdE * cla;
const float realstrbdE = reducdE * clb;
const float realstrchdE = reducdE * clc;
/* comment on processus deltaE
* the algo uses 3 different ways to manage deltaE according to the type of intervention
* if we call "applyproc" the datas produced upstream in bfw, bfh coordinate by the function producing something curves, retinex, exposure, etc.
* direct : in this case we use directly the datas produced upstream by "applyproc", with only a reguation produce for deltaE by reducdE
* direct we found in this case "applyproc" modify data with low amplitude : BlurNoise, CBDL, DEnoise
* with first use of "buflight" on which is apply "applyproc", in this case we apply realstrdE = reducdE * buflight with a function of type 328.f * factorx * realstrdE
* in this case we found "applyproc" which result in direct use on L : Exposure, Color and Light, Shadows highlight, softLight
* with second use of "buflight" on which is apply "applyproc", in this case we apply realstrdE = reducdE * buflight with a function of type fli = (100.f + realstrdE) / 100.f;
* in this case we found "applyproc" which result in large variations of L : Retinex, TM, and others
* if you change you must test before
*/
if (rL > 0.1f) { //to avoid crash with very low gamut in rare cases ex : L=0.01 a=0.5 b=-0.9
switch (zone) {
@@ -3663,6 +3678,24 @@ void ImProcFunctions::Lab_Local(int call, int sp, float** shbuffer, LabImage * o
const LocCCmaskcbCurve & locccmascbCurve, bool &lcmascbutili, const LocLLmaskcbCurve & locllmascbCurve, bool &llmascbutili, const LocHHmaskcbCurve & lochhmascbCurve, bool & lhmascbutili,
bool & LHutili, bool & HHutili, LUTf & cclocalcurve, bool & localcutili, bool & localexutili, LUTf & exlocalcurve, LUTf & hltonecurveloc, LUTf & shtonecurveloc, LUTf & tonecurveloc, LUTf & lightCurveloc, double & huerefblur, double &chromarefblur, double & lumarefblur, double & hueref, double & chromaref, double & lumaref, double & sobelref, int llColorMask, int llExpMask, int llSHMask, int llcbMask)
{
/* comment on processus deltaE
* the algo uses 3 different ways to manage deltaE according to the type of intervention
* if we call "applyproc" the datas produced upstream in bfw, bfh coordinate by the function producing something curves, retinex, exposure, etc.
* direct : in this case we use directly the datas produced upstream by "applyproc", with only a reguation produce for deltaE by reducdE
* direct we found in this case "applyproc" modify data with low amplitude : BlurNoise, CBDL, DEnoise
* with first use of "buflight" on which is apply "applyproc", in this case we apply realstrdE = reducdE * buflight with a function of type 328.f * factorx * realstrdE
* in this case we found "applyproc" which result in direct use on L : Exposure, Color and Light, Shadows highlight, softLight
* with second use of "buflight" on which is apply "applyproc", in this case we apply realstrdE = reducdE * buflight with a function of type fli = (100.f + realstrdE) / 100.f;
* in this case we found "applyproc" which result in large variations of L : Retinex, TM, and others
* if you change you must test before
*/
//general call of others functions : important return hueref, chromaref, lumaref
if (params->locallab.enabled) {
BENCHFUN