diff --git a/Core/Code/Testing/mitkMultiComponentImageDataComparisonFilterTest.cpp b/Core/Code/Testing/mitkMultiComponentImageDataComparisonFilterTest.cpp
index 7d93451d09..77a3033270 100644
--- a/Core/Code/Testing/mitkMultiComponentImageDataComparisonFilterTest.cpp
+++ b/Core/Code/Testing/mitkMultiComponentImageDataComparisonFilterTest.cpp
@@ -1,80 +1,81 @@
 /*===================================================================
 
 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.
 
 ===================================================================*/
 
 // mitk includes
 #include "mitkTestingMacros.h"
 #include "mitkMultiComponentImageDataComparisonFilter.h"
 #include "mitkItkImageFileReader.h"
+#include "mitkImageReadAccessor.h"
 
 #include "itkNumericTraits.h"
 
 int mitkMultiComponentImageDataComparisonFilterTest(int argc, char* argv[])
 {
   MITK_TEST_BEGIN("MultiComponentImageDataComparisonFilter");
 
   // instantiation
   mitk::MultiComponentImageDataComparisonFilter::Pointer testObject = mitk::MultiComponentImageDataComparisonFilter::New();
   MITK_TEST_CONDITION_REQUIRED(testObject.IsNotNull(), "Testing instantiation of test class!");
 
   MITK_TEST_CONDITION_REQUIRED(testObject->GetCompareFilterResult() == NULL, "Testing initialization of result struct" );
   MITK_TEST_CONDITION_REQUIRED(testObject->GetTolerance() == 0.0f, "Testing initialization of tolerance member");
   MITK_TEST_CONDITION_REQUIRED(testObject->GetResult() == false, "Testing initialization of CompareResult member");
 
   // initialize compare result struct and pass it to the filter
   mitk::CompareFilterResults compareResult;
   compareResult.m_MaximumDifference = 0.0f;
   compareResult.m_MinimumDifference = itk::NumericTraits<double>::max();
   compareResult.m_MeanDifference = 0.0f;
   compareResult.m_FilterCompleted = false;
   compareResult.m_TotalDifference = 0.0f;
   compareResult.m_PixelsWithDifference = 0;
   testObject->SetCompareFilterResult(&compareResult);
 
   MITK_TEST_CONDITION_REQUIRED(testObject->GetCompareFilterResult() != NULL, "Testing set/get of compare result struct" );
   MITK_TEST_CONDITION_REQUIRED(testObject->GetResult() == false, "CompareResult still false" );
 
   //now load an image with several components and present it to the filter
   mitk::ItkImageFileReader::Pointer imgReader = mitk::ItkImageFileReader::New();
   imgReader->SetFileName(argv[1]);
   imgReader->Update();
 
   mitk::Image::Pointer testImg = imgReader->GetOutput();
   mitk::Image::Pointer testImg2 = testImg->Clone();
 
   testObject->SetValidImage(testImg);
   testObject->SetTestImage(testImg2);
 
   MITK_TEST_CONDITION_REQUIRED(testObject->GetNumberOfIndexedInputs() == 2, "Testing correct handling of input images");
 
   testObject->Update();
 
   MITK_TEST_CONDITION_REQUIRED(testObject->GetResult(), "Testing filter processing with equal image data");
 
   // now change some of the data and check if the response is correct
   mitk::ImageReadAccessor imgAcc(testImg2);
   unsigned char* imgData = (unsigned char*) imgAcc.GetData();
   imgData[10] += 1;
   imgData[20] += 2;
   imgData[30] += 3;
 
   testObject->Update();
 
   MITK_TEST_CONDITION_REQUIRED(testObject->GetResult() == false, "Testing filter processing with unequal image data");
   MITK_TEST_CONDITION_REQUIRED(mitk::Equal((int)testObject->GetCompareFilterResult()->m_PixelsWithDifference, (int) 3) &&
     mitk::Equal((double)testObject->GetCompareFilterResult()->m_MaximumDifference, (double) 3.0) &&
     mitk::Equal((double)testObject->GetCompareFilterResult()->m_MeanDifference, (double) 2.0), "Assessing calculated image differences");
   MITK_TEST_END();
 }