diff --git a/Modules/Classification/CLUtilities/test/mitkGIFGreyLevelSizeZoneTest.cpp b/Modules/Classification/CLUtilities/test/mitkGIFGreyLevelSizeZoneTest.cpp
index 56610a8285..5b993a40fa 100644
--- a/Modules/Classification/CLUtilities/test/mitkGIFGreyLevelSizeZoneTest.cpp
+++ b/Modules/Classification/CLUtilities/test/mitkGIFGreyLevelSizeZoneTest.cpp
@@ -1,145 +1,145 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include <mitkTestingMacros.h>
 #include <mitkTestFixture.h>
 #include "mitkIOUtil.h"
 #include <cmath>
 
 #include <mitkGIFGreyLevelSizeZone.h>
 
 class mitkGIFGreyLevelSizeZoneTestSuite : public mitk::TestFixture
 {
   CPPUNIT_TEST_SUITE(mitkGIFGreyLevelSizeZoneTestSuite );
 
   MITK_TEST(ImageDescription_PhantomTest_3D);
   MITK_TEST(ImageDescription_PhantomTest_2D);
 
   CPPUNIT_TEST_SUITE_END();
 
 private:
   mitk::Image::Pointer m_IBSI_Phantom_Image_Small;
   mitk::Image::Pointer m_IBSI_Phantom_Image_Large;
   mitk::Image::Pointer m_IBSI_Phantom_Mask_Small;
   mitk::Image::Pointer m_IBSI_Phantom_Mask_Large;
 
 public:
 
   void setUp(void) override
   {
     m_IBSI_Phantom_Image_Small = mitk::IOUtil::LoadImage(GetTestDataFilePath("Radiomics/IBSI_Phantom_Image_Small.nrrd"));
     m_IBSI_Phantom_Image_Large = mitk::IOUtil::LoadImage(GetTestDataFilePath("Radiomics/IBSI_Phantom_Image_Large.nrrd"));
     m_IBSI_Phantom_Mask_Small = mitk::IOUtil::LoadImage(GetTestDataFilePath("Radiomics/IBSI_Phantom_Mask_Small.nrrd"));
     m_IBSI_Phantom_Mask_Large = mitk::IOUtil::LoadImage(GetTestDataFilePath("Radiomics/IBSI_Phantom_Mask_Large.nrrd"));
   }
 
   void ImageDescription_PhantomTest_3D()
   {
     mitk::GIFGreyLevelSizeZone::Pointer featureCalculator = mitk::GIFGreyLevelSizeZone::New();
 
     featureCalculator->SetUseBinsize(true);
     featureCalculator->SetBinsize(1.0);
     featureCalculator->SetUseMinimumIntensity(true);
     featureCalculator->SetUseMaximumIntensity(true);
     featureCalculator->SetMinimumIntensity(0.5);
     featureCalculator->SetMaximumIntensity(6.5);
 
     auto featureList = featureCalculator->CalculateFeatures(m_IBSI_Phantom_Image_Large, m_IBSI_Phantom_Mask_Large);
 
     std::map<std::string, double> results;
     for (auto valuePair : featureList)
     {
       MITK_INFO << valuePair.first << " : " << valuePair.second;
       results[valuePair.first] = valuePair.second;
     }
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Image Diagnostics should calculate 18 features.", std::size_t(18), featureList.size());
 
     // These values are obtained with IBSI
     // Standard accuracy is 0.01
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Small Zone Emphasis with Large IBSI Phantom Image", 0.255, results["Grey Level Size Zone::Small Zone Emphasis"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Large Zone Emphasis with Large IBSI Phantom Image", 550, results["Grey Level Size Zone::Large Zone Emphasis"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Low Grey Level Emphasis with Large IBSI Phantom Image", 0.253, results["Grey Level Size Zone::Low Grey Level Emphasis"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::High Grey Level Emphasis with Large IBSI Phantom Image", 15.6, results["Grey Level Size Zone::High Grey Level Emphasis"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Small Zone Low Grey Level Emphasis with Large IBSI Phantom Image", 0.0256, results["Grey Level Size Zone::Small Zone Low Grey Level Emphasis"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Small Zone High Grey Level Emphasis with Large IBSI Phantom Image", 2.76, results["Grey Level Size Zone::Small Zone High Grey Level Emphasis"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Large Zone Low Grey Level Emphasis with Large IBSI Phantom Image", 503, results["Grey Level Size Zone::Large Zone Low Grey Level Emphasis"], 1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Large Zone High Grey Level Emphasis with Large IBSI Phantom Image", 1495, results["Grey Level Size Zone::Large Zone High Grey Level Emphasis"], 1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Grey Level Non-Uniformity with Large IBSI Phantom Image", 1.4, results["Grey Level Size Zone::Grey Level Non-Uniformity"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Grey Level Non-Uniformity Normalized with Large IBSI Phantom Image", 0.28, results["Grey Level Size Zone::Grey Level Non-Uniformity Normalized"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Size Non-Uniformity with Large IBSI Phantom Image", 1, results["Grey Level Size Zone::Zone Size Non-Uniformity"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Size Non-Uniformity Normalized with Large IBSI Phantom Image", 0.2, results["Grey Level Size Zone::Zone Size Non-Uniformity Normalized"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Percentage with Large IBSI Phantom Image", 0.0676, results["Grey Level Size Zone::Zone Percentage"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Grey Level Variance with Large IBSI Phantom Image", 2.64, results["Grey Level Size Zone::Grey Level Variance"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Size Variance with Large IBSI Phantom Image", 331,   results["Grey Level Size Zone::Zone Size Variance"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Size Entropy with Large IBSI Phantom Image", 2.32, results["Grey Level Size Zone::Zone Size Entropy"], 0.01);
     //CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone:: with Large IBSI Phantom Image", 0.045, results["Grey Level Size Zone::"], 0.001);
 
     // These values are obtained by manually running the tool
     // Values might be wrong.
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Grey Level Mean with Large IBSI Phantom Image", 3.6, results["Grey Level Size Zone::Grey Level Mean"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("Grey Level Size Zone::Zone Size Mean with Large IBSI Phantom Image", 14.8, results["Grey Level Size Zone::Zone Size Mean"], 0.001);
   }
 
   void ImageDescription_PhantomTest_2D()
   {
     mitk::GIFGreyLevelSizeZone::Pointer featureCalculator = mitk::GIFGreyLevelSizeZone::New();
 
     featureCalculator->SetUseBinsize(true);
     featureCalculator->SetBinsize(1.0);
     featureCalculator->SetUseMinimumIntensity(true);
     featureCalculator->SetUseMaximumIntensity(true);
     featureCalculator->SetMinimumIntensity(0.5);
     featureCalculator->SetMaximumIntensity(6.5);
 
     auto featureList = featureCalculator->CalculateFeaturesSlicewise(m_IBSI_Phantom_Image_Large, m_IBSI_Phantom_Mask_Large, 2);
 
     std::map<std::string, double> results;
     for (auto valuePair : featureList)
     {
       MITK_INFO << valuePair.first << " : " << valuePair.second;
       results[valuePair.first] = valuePair.second;
     }
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Image Diagnostics should calculate 108 features.", std::size_t(108), featureList.size());
 
     // These values are obtained with IBSI
     // Standard accuracy is 0.01
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Small Zone Emphasis with Large IBSI Phantom Image", 0.363, results["SliceWise Mean Grey Level Size Zone::Small Zone Emphasis"], 0.001);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Large Zone Emphasis with Large IBSI Phantom Image", 43.9, results["SliceWise Mean Grey Level Size Zone::Large Zone Emphasis"], 0.001);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Large Zone Emphasis with Large IBSI Phantom Image", 43.9, results["SliceWise Mean Grey Level Size Zone::Large Zone Emphasis"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Low Grey Level Emphasis with Large IBSI Phantom Image", 0.371, results["SliceWise Mean Grey Level Size Zone::Low Grey Level Emphasis"], 0.001);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::High Grey Level Emphasis with Large IBSI Phantom Image", 16.4, results["SliceWise Mean Grey Level Size Zone::High Grey Level Emphasis"], 0.001);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::High Grey Level Emphasis with Large IBSI Phantom Image", 16.4, results["SliceWise Mean Grey Level Size Zone::High Grey Level Emphasis"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Small Zone Low Grey Level Emphasis with Large IBSI Phantom Image", 0.0259, results["SliceWise Mean Grey Level Size Zone::Small Zone Low Grey Level Emphasis"], 0.001);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Small Zone High Grey Level Emphasis with Large IBSI Phantom Image", 10.3, results["SliceWise Mean Grey Level Size Zone::Small Zone High Grey Level Emphasis"], 0.01);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Small Zone High Grey Level Emphasis with Large IBSI Phantom Image", 10.3, results["SliceWise Mean Grey Level Size Zone::Small Zone High Grey Level Emphasis"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Large Zone Low Grey Level Emphasis with Large IBSI Phantom Image", 40.4, results["SliceWise Mean Grey Level Size Zone::Large Zone Low Grey Level Emphasis"], 1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Large Zone High Grey Level Emphasis with Large IBSI Phantom Image", 113, results["SliceWise Mean Grey Level Size Zone::Large Zone High Grey Level Emphasis"], 1);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity with Large IBSI Phantom Image", 1.41, results["SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity"], 0.001);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity Normalized with Large IBSI Phantom Image", 0.323, results["SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity Normalized"], 0.01);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity with Large IBSI Phantom Image", 1.41, results["SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity"], 0.01);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity Normalized with Large IBSI Phantom Image", 0.323, results["SliceWise Mean Grey Level Size Zone::Grey Level Non-Uniformity Normalized"], 0.001);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Non-Uniformity with Large IBSI Phantom Image", 1.49, results["SliceWise Mean Grey Level Size Zone::Zone Size Non-Uniformity"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Non-Uniformity Normalized with Large IBSI Phantom Image", 0.333, results["SliceWise Mean Grey Level Size Zone::Zone Size Non-Uniformity Normalized"], 0.01);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Percentage with Large IBSI Phantom Image", 0.24, results["SliceWise Mean Grey Level Size Zone::Zone Percentage"], 0.001);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Percentage with Large IBSI Phantom Image", 0.24, results["SliceWise Mean Grey Level Size Zone::Zone Percentage"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Variance with Large IBSI Phantom Image", 3.97, results["SliceWise Mean Grey Level Size Zone::Grey Level Variance"], 0.01);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Variance with Large IBSI Phantom Image", 21, results["SliceWise Mean Grey Level Size Zone::Zone Size Variance"], 0.1);
     CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Entropy with Large IBSI Phantom Image", 1.93, results["SliceWise Mean Grey Level Size Zone::Zone Size Entropy"], 0.01);
     //CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone:: with Large IBSI Phantom Image", 0.045, results["SliceWise Mean Grey Level Size Zone::"], 0.001);
 
     // These values are obtained by manually running the tool
     // Values might be wrong.
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Mean with Large IBSI Phantom Image", 3.6, results["SliceWise Mean Grey Level Size Zone::Grey Level Mean"], 0.001);
-    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Mean with Large IBSI Phantom Image", 14.8, results["SliceWise Mean Grey Level Size Zone::Zone Size Mean"], 0.001);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Grey Level Mean with Large IBSI Phantom Image", 3.526, results["SliceWise Mean Grey Level Size Zone::Grey Level Mean"], 0.001);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("SliceWise Mean Grey Level Size Zone::Zone Size Mean with Large IBSI Phantom Image", 4.59524, results["SliceWise Mean Grey Level Size Zone::Zone Size Mean"], 0.001);
   }
 
 };
 
 MITK_TEST_SUITE_REGISTRATION(mitkGIFGreyLevelSizeZone )
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