diff --git a/Modules/SurfaceInterpolation/mitkComputeContourSetNormalsFilter.cpp b/Modules/SurfaceInterpolation/mitkComputeContourSetNormalsFilter.cpp
index 7589adbeae..9c6ab2bdbd 100644
--- a/Modules/SurfaceInterpolation/mitkComputeContourSetNormalsFilter.cpp
+++ b/Modules/SurfaceInterpolation/mitkComputeContourSetNormalsFilter.cpp
@@ -1,319 +1,321 @@
 /*===================================================================
 
 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 "mitkComputeContourSetNormalsFilter.h"
 
 #include "mitkImagePixelReadAccessor.h"
 
 
 mitk::ComputeContourSetNormalsFilter::ComputeContourSetNormalsFilter()
 {
   m_MaxSpacing = 5;
   this->m_UseProgressBar = false;
   this->m_ProgressStepSize = 1;
 
   mitk::Surface::Pointer output = mitk::Surface::New();
   this->SetNthOutput(0, output.GetPointer());
 }
 
 mitk::ComputeContourSetNormalsFilter::~ComputeContourSetNormalsFilter()
 {
 }
 
 void mitk::ComputeContourSetNormalsFilter::GenerateData()
 {
   unsigned int numberOfInputs = this->GetNumberOfIndexedInputs();
   this->CreateOutputsForAllInputs(numberOfInputs);
 
   //Iterating over each input
   for(unsigned int i = 0; i < numberOfInputs; i++)
   {
     //Getting the inputs polydata and polygons
     Surface* currentSurface = const_cast<Surface*>( this->GetInput(i) );
     vtkPolyData* polyData = currentSurface->GetVtkPolyData();
 
     vtkSmartPointer<vtkCellArray> existingPolys = polyData->GetPolys();
 
     vtkSmartPointer<vtkPoints> existingPoints = polyData->GetPoints();
 
     existingPolys->InitTraversal();
 
     vtkIdType* cell (NULL);
     vtkIdType cellSize (0);
 
     //The array that contains all the vertex normals of the current polygon
     vtkSmartPointer<vtkDoubleArray> normals = vtkSmartPointer<vtkDoubleArray>::New();
     normals->SetNumberOfComponents(3);
     normals->SetNumberOfTuples(polyData->GetNumberOfPoints());
 
     //If the current contour is an inner contour then the direction is -1
     //A contour lies inside another one if the pixel values in the direction of the normal is 1
     m_NegativeNormalCounter = 0;
     m_PositiveNormalCounter = 0;
+    vtkIdType offSet (0);
 
     //Iterating over each polygon
     for( existingPolys->InitTraversal(); existingPolys->GetNextCell(cellSize, cell);)
     {
       if(cellSize < 3)continue;
 
       //First we calculate the current polygon's normal
       double polygonNormal[3] = {0.0};
 
       double p1[3];
       double p2[3];
 
       double v1[3];
       double v2[3];
 
       existingPoints->GetPoint(cell[0], p1);
       unsigned int index = cellSize*0.5;
       existingPoints->GetPoint(cell[index], p2);
 
       v1[0] = p2[0]-p1[0];
       v1[1] = p2[1]-p1[1];
       v1[2] = p2[2]-p1[2];
 
       for (unsigned int k = 2; k < cellSize; k++)
       {
         index = cellSize*0.25;
         existingPoints->GetPoint(cell[index], p1);
         index = cellSize*0.75;
         existingPoints->GetPoint(cell[index], p2);
 
         v2[0] = p2[0]-p1[0];
         v2[1] = p2[1]-p1[1];
         v2[2] = p2[2]-p1[2];
 
         vtkMath::Cross(v1,v2,polygonNormal);
         if (vtkMath::Norm(polygonNormal) != 0)
           break;
       }
 
       vtkMath::Normalize(polygonNormal);
 
       //Now we start computing the normal for each vertex
 
       double vertexNormalTemp[3];
       existingPoints->GetPoint(cell[0], p1);
       existingPoints->GetPoint(cell[1], p2);
 
       v1[0] = p2[0]-p1[0];
       v1[1] = p2[1]-p1[1];
       v1[2] = p2[2]-p1[2];
 
       vtkMath::Cross(v1,polygonNormal,vertexNormalTemp);
 
       vtkMath::Normalize(vertexNormalTemp);
 
       double vertexNormal[3];
 
       for (unsigned j = 0; j < cellSize-2; j++)
       {
         existingPoints->GetPoint(cell[j+1], p1);
         existingPoints->GetPoint(cell[j+2], p2);
 
         v1[0] = p2[0]-p1[0];
         v1[1] = p2[1]-p1[1];
         v1[2] = p2[2]-p1[2];
 
         vtkMath::Cross(v1,polygonNormal,vertexNormal);
 
         vtkMath::Normalize(vertexNormal);
 
         double finalNormal[3];
 
         finalNormal[0] = (vertexNormal[0] + vertexNormalTemp[0])*0.5;
         finalNormal[1] = (vertexNormal[1] + vertexNormalTemp[1])*0.5;
         finalNormal[2] = (vertexNormal[2] + vertexNormalTemp[2])*0.5;
 
         //Here we determine the direction of the normal
-        if (j == 0 && m_SegmentationBinaryImage)
+        if (m_SegmentationBinaryImage)
         {
           Point3D worldCoord;
           worldCoord[0] = p1[0]+finalNormal[0]*m_MaxSpacing;
           worldCoord[1] = p1[1]+finalNormal[1]*m_MaxSpacing;
           worldCoord[2] = p1[2]+finalNormal[2]*m_MaxSpacing;
 
           double val = 0.0;
           mitk::ImagePixelReadAccessor<unsigned char> readAccess(m_SegmentationBinaryImage);
           mitk::Index3D idx;
           m_SegmentationBinaryImage->GetGeometry()->WorldToIndex(worldCoord, idx);
           val = readAccess.GetPixelByIndexSafe(idx);
 
-          if (val == 1.0)
+          if (val == 0.0)
           {
               ++m_PositiveNormalCounter;
           }
           else
           {
               ++m_NegativeNormalCounter;
           }
         }
 
         vertexNormalTemp[0] = vertexNormal[0];
         vertexNormalTemp[1] = vertexNormal[1];
         vertexNormalTemp[2] = vertexNormal[2];
 
         vtkIdType id = cell[j+1];
         normals->SetTuple(id,finalNormal);
       }
 
       existingPoints->GetPoint(cell[0], p1);
       existingPoints->GetPoint(cell[1], p2);
 
       v1[0] = p2[0]-p1[0];
       v1[1] = p2[1]-p1[1];
       v1[2] = p2[2]-p1[2];
 
       vtkMath::Cross(v1,polygonNormal,vertexNormal);
 
       vtkMath::Normalize(vertexNormal);
 
       vertexNormal[0] = (vertexNormal[0] + vertexNormalTemp[0])*0.5;
       vertexNormal[1] = (vertexNormal[1] + vertexNormalTemp[1])*0.5;
       vertexNormal[2] = (vertexNormal[2] + vertexNormalTemp[2])*0.5;
 
       vtkIdType id = cell[0];
       normals->SetTuple(id,vertexNormal);
       id = cell[cellSize-1];
       normals->SetTuple(id,vertexNormal);
 
-      int normalDirection(-1);
-
-      if(m_NegativeNormalCounter < m_PositiveNormalCounter)
+      if(m_NegativeNormalCounter > m_PositiveNormalCounter)
       {
-          normalDirection = 1;
+          for(vtkIdType n = 0; n < cellSize; n++)
+          {
+              double normal[3];
+              normals->GetTuple(offSet+n, normal);
+              normal[0] = (-1)*normal[0];
+              normal[1] = (-1)*normal[1];
+              normal[2] = (-1)*normal[2];
+              normals->SetTuple(offSet+n, normal);
+          }
       }
 
-      for(unsigned int n = 0; n < normals->GetNumberOfTuples(); n++)
-      {
-          double normal[3];
-          normals->GetTuple(n,normal);
-          normal[0] = normalDirection*normal[0];
-          normal[1] = normalDirection*normal[1];
-          normal[2] = normalDirection*normal[2];
-      }
+      m_NegativeNormalCounter = 0;
+      m_PositiveNormalCounter = 0;
+      offSet += cellSize;
 
 
     }//end for all cells
 
     Surface::Pointer surface = this->GetOutput(i);
     surface->GetVtkPolyData()->GetCellData()->SetNormals(normals);
   }//end for all inputs
 
   //Setting progressbar
   if (this->m_UseProgressBar)
     mitk::ProgressBar::GetInstance()->Progress(this->m_ProgressStepSize);
 }
 
 
 mitk::Surface::Pointer mitk::ComputeContourSetNormalsFilter::GetNormalsAsSurface()
 {
   //Just for debugging:
   vtkSmartPointer<vtkPolyData> newPolyData = vtkSmartPointer<vtkPolyData>::New();
   vtkSmartPointer<vtkCellArray> newLines = vtkSmartPointer<vtkCellArray>::New();
   vtkSmartPointer<vtkPoints> newPoints = vtkSmartPointer<vtkPoints>::New();
   unsigned int idCounter (0);
   //Debug end
 
   for (unsigned int i = 0; i < this->GetNumberOfIndexedOutputs(); i++)
   {
     Surface* currentSurface = const_cast<Surface*>( this->GetOutput(i) );
     vtkPolyData* polyData = currentSurface->GetVtkPolyData();
 
     vtkSmartPointer<vtkDoubleArray> currentCellNormals = vtkDoubleArray::SafeDownCast(polyData->GetCellData()->GetNormals());
 
     vtkSmartPointer<vtkCellArray> existingPolys = polyData->GetPolys();
 
     vtkSmartPointer<vtkPoints> existingPoints = polyData->GetPoints();
 
     existingPolys->InitTraversal();
 
     vtkIdType* cell (NULL);
     vtkIdType cellSize (0);
 
     for( existingPolys->InitTraversal(); existingPolys->GetNextCell(cellSize, cell);)
     {
       for ( unsigned int j = 0; j < cellSize; j++ )
       {
         double currentNormal[3];
         currentCellNormals->GetTuple(cell[j], currentNormal);
         vtkSmartPointer<vtkLine> line = vtkSmartPointer<vtkLine>::New();
         line->GetPointIds()->SetNumberOfIds(2);
         double newPoint[3];
         double p0[3];
         existingPoints->GetPoint(cell[j], p0);
         newPoint[0] = p0[0] + currentNormal[0];
         newPoint[1] = p0[1] + currentNormal[1];
         newPoint[2] = p0[2] + currentNormal[2];
 
         line->GetPointIds()->SetId(0, idCounter);
         newPoints->InsertPoint(idCounter, p0);
         idCounter++;
 
         line->GetPointIds()->SetId(1, idCounter);
         newPoints->InsertPoint(idCounter, newPoint);
         idCounter++;
 
         newLines->InsertNextCell(line);
       }//end for all points
     }//end for all cells
   }//end for all outputs
 
   newPolyData->SetPoints(newPoints);
   newPolyData->SetLines(newLines);
   newPolyData->BuildCells();
 
 
   mitk::Surface::Pointer surface = mitk::Surface::New();
   surface->SetVtkPolyData(newPolyData);
 
   return surface;
 
 }
 
 void mitk::ComputeContourSetNormalsFilter::SetMaxSpacing(double maxSpacing)
 {
     m_MaxSpacing = maxSpacing;
 }
 
 void mitk::ComputeContourSetNormalsFilter::GenerateOutputInformation()
 {
   Superclass::GenerateOutputInformation();
 }
 
 void mitk::ComputeContourSetNormalsFilter::Reset()
 {
   for (unsigned int i = 0; i < this->GetNumberOfIndexedInputs(); i++)
   {
     this->PopBackInput();
   }
   this->SetNumberOfIndexedInputs(0);
   this->SetNumberOfIndexedOutputs(0);
 
   mitk::Surface::Pointer output = mitk::Surface::New();
   this->SetNthOutput(0, output.GetPointer());
 }
 
 void mitk::ComputeContourSetNormalsFilter::SetUseProgressBar(bool status)
 {
   this->m_UseProgressBar = status;
 }
 
 void mitk::ComputeContourSetNormalsFilter::SetProgressStepSize(unsigned int stepSize)
 {
   this->m_ProgressStepSize = stepSize;
 }