Local adjustments - Normalize luminance - improvment Preview TM - Retinex - Remove D.Range (#6185)

* Enable dynamic range - settings normalize luminance

* Change range DR sigma offset

* improve normalize_mean_dt with mean std before

* Save work on normalize dynamic range

* Improve normalize for TM

* Added LA retinex to normalize_mean

* Clean and optimize code

* Disabled normalize DR - improve TM and Retinex

* Clean code - first part

* Clean code - part two

* Change 2 default values Retinex

* Change order TM and Retinex in process

* remove the order number in - add tool to current spot -

* Fixed bug in TM

* Some change Retinex - default...

* optimize mean sigma

* cleanup for mean_sig

* Fix some cppcheck issues

* convert one large loop into three loops to avoid performance penalty on machines with 4-way L1 cache

Co-authored-by: Ingo Weyrich <heckflosse67@gmx.de>

rtgui/locallabtools.h

@@ -339,6 +339,7 @@ private:
     MyExpander* const expfat;
     Adjuster* const fatamount;
     Adjuster* const fatdetail;
+    Gtk::CheckButton* const norm;
     Adjuster* const fatlevel;
     Adjuster* const fatanchor;
     Adjuster* const sensiex;
@@ -388,7 +389,7 @@ private:
     CurveEditorGroup* const mask2expCurveEditorG;
     DiagonalCurveEditor* const Lmaskexpshape;
 
-    sigc::connection expMethodConn, exnoiseMethodConn, inversexConn, showmaskexpMethodConn, showmaskexpMethodConninv, enaExpMaskConn, enaExpMaskaftConn;
+    sigc::connection expMethodConn, exnoiseMethodConn, inversexConn, normConn, showmaskexpMethodConn, showmaskexpMethodConninv, enaExpMaskConn, enaExpMaskaftConn;
 
 public:
     LocallabExposure();
@@ -420,6 +421,7 @@ private:
     void expMethodChanged();
     void exnoiseMethodChanged();
     void inversexChanged();
+    void normChanged();
     void showmaskexpMethodChanged();
     void showmaskexpMethodChangedinv();
     void enaExpMaskChanged();