diff --git a/rtengine/iplocallab.cc b/rtengine/iplocallab.cc
index 19c597ab7..738b6eff0 100644
--- a/rtengine/iplocallab.cc
+++ b/rtengine/iplocallab.cc
@@ -9592,7 +9592,6 @@ void ImProcFunctions::Lab_Local(int call, int maxspot, int sp, LUTf & huerefs, L
                         gaussianBlur(original->L, tmp2->L, GW, GH, radius);
                         gaussianBlur(original->a, tmp2->a, GW, GH, radius);
                         gaussianBlur(original->b, tmp2->b, GW, GH, radius);
-
                     }
 
                 }
@@ -9602,12 +9601,14 @@ void ImProcFunctions::Lab_Local(int call, int maxspot, int sp, LUTf & huerefs, L
 #ifdef _OPENMP
                 #pragma omp parallel
 #endif
+
                 {
                     gaussianBlur(bufgb->L, tmp1->L, bfw, bfh, radius);
                     gaussianBlur(bufgb->a, tmp1->a, bfw, bfh, radius);
                     gaussianBlur(bufgb->b, tmp1->b, bfw, bfh, radius);
                 }
 
+
             } else {
                 tmp1 = new LabImage(transformed->W, transformed->H);;
 
@@ -9623,9 +9624,13 @@ void ImProcFunctions::Lab_Local(int call, int maxspot, int sp, LUTf & huerefs, L
             }
 
             if (lp.stren > 0.1f) {
-                float mean = 0.f;//0 best result
-                float variance = lp.stren ; //(double) SQR(lp.stren)/sk;
-                addGaNoise(tmp1, tmp1, mean, variance, sk) ;
+                if (lp.blurmet <= 1) {
+
+                    float mean = 0.f;//0 best result
+                    float variance = lp.stren ; //(double) SQR(lp.stren)/sk;
+                    addGaNoise(tmp1, tmp1, mean, variance, sk) ;
+                }
+
             }
 
             if (lp.blurmet != 1) { //blur and noise (center)
diff --git a/rtgui/locallab.cc b/rtgui/locallab.cc
index ce79823b5..34088dc4c 100644
--- a/rtgui/locallab.cc
+++ b/rtgui/locallab.cc
@@ -1812,6 +1812,12 @@ void Locallab::blurMethodChanged()
         sensibn->hide();
     }
 
+    if (blurMethod->get_active_row_number() == 2) {
+        strength->hide();
+    } else {
+        strength->show();
+    }
+
     if (getEnabled() && expblur->getEnabled()) {
         if (listener) {
             listener->panelChanged(EvlocallabblurMethod, blurMethod->get_active_text());
@@ -3122,6 +3128,12 @@ void Locallab::updateSpecificGUIState()
         sensibn->hide();
     }
 
+    if (blurMethod->get_active_row_number() == 2) {
+        strength->hide();
+    } else {
+        strength->show();
+    }
+
     // Update Retinex GUI according to inversret button state (to be compliant with inversretChanged function)
     if (inversret->get_active()) {
         sensih->hide();