diff --git a/app/cbDimensionalityReduction.cxx b/app/cbDimensionalityReduction.cxx
index aacadbb936f04e7f0c9229b3529a7031e854ac1c..de6408ebcb313fc3badfa27a585b125ecbb5964d 100644
--- a/app/cbDimensionalityReduction.cxx
+++ b/app/cbDimensionalityReduction.cxx
@@ -222,7 +222,7 @@ private:
         }
         
       // Rescale vector image
-      m_Rescaler->SetScale(stddevMeasurementVector*3);
+      m_Rescaler->SetScale(stddevMeasurementVector);
       m_Rescaler->SetShift(meanMeasurementVector);
       m_Rescaler->SetInput(inImage);
 
diff --git a/app/cbDimensionalityReductionTrainer.cxx b/app/cbDimensionalityReductionTrainer.cxx
index 55232ef871b527a00e5e3664737eb2bb4c9bdb1f..4cb042427b0288b1da73b4149afbab4b152fecce 100644
--- a/app/cbDimensionalityReductionTrainer.cxx
+++ b/app/cbDimensionalityReductionTrainer.cxx
@@ -124,7 +124,7 @@ private:
 		ShiftScaleFilterType::Pointer trainingShiftScaleFilter = ShiftScaleFilterType::New();
 		trainingShiftScaleFilter->SetInput(input);
 		trainingShiftScaleFilter->SetShifts(meanMeasurementVector);
-		trainingShiftScaleFilter->SetScales(stddevMeasurementVector*3);
+		trainingShiftScaleFilter->SetScales(stddevMeasurementVector);
 		trainingShiftScaleFilter->Update();
 
 		ListSampleType::Pointer trainingListSample= trainingShiftScaleFilter->GetOutput();
diff --git a/app/cbDimensionalityReductionVector.cxx b/app/cbDimensionalityReductionVector.cxx
index cf2caed54850b84703a3a5d34670438f9c5c3a5f..12e1307ad112a8e3a71252a352f029fa0dfd72ca 100644
--- a/app/cbDimensionalityReductionVector.cxx
+++ b/app/cbDimensionalityReductionVector.cxx
@@ -223,7 +223,7 @@ class CbDimensionalityReductionVector : public Application
 			ShiftScaleFilterType::Pointer trainingShiftScaleFilter = ShiftScaleFilterType::New();
 			trainingShiftScaleFilter->SetInput(input);
 			trainingShiftScaleFilter->SetShifts(meanMeasurementVector);
-			trainingShiftScaleFilter->SetScales(stddevMeasurementVector*3);
+			trainingShiftScaleFilter->SetScales(stddevMeasurementVector);
 			trainingShiftScaleFilter->Update();
 			otbAppLogINFO("mean used: " << meanMeasurementVector);
 			otbAppLogINFO("standard deviation used: " << stddevMeasurementVector);