diff --git a/Modules/Classification/CLActiveLearning/include/mitkPredictionConfidenceFilter.h b/Modules/Classification/CLActiveLearning/include/mitkPredictionConfidenceFilter.h
new file mode 100644
index 0000000000..4878aad901
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/include/mitkPredictionConfidenceFilter.h
@@ -0,0 +1,48 @@
+/*===================================================================
+
+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.
+
+===================================================================*/
+
+#ifndef mitkPredictionConfidenceFilter_h
+#define mitkPredictionConfidenceFilter_h
+
+#include <MitkCLActiveLearningExports.h>
+
+#include <mitkPredictionUncertaintyFilter.h>
+#include <mitkCommon.h>
+
+namespace mitk
+{
+
+    template <typename InputImageType, typename OutputImageType>
+    class MITKCLACTIVELEARNING_EXPORT PredictionConfidenceFilter : public mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType>
+    {
+
+    public:
+
+        typedef mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType> SuperClassName;
+        mitkClassMacro(PredictionConfidenceFilter, SuperClassName)
+        itkNewMacro(Self)
+
+    protected:
+
+//        PredictionConfidenceFilter(){}
+//        ~PredictionConfidenceFilter(){}
+
+        OutputPixelType CalculateUncertainty(const InputPixelType& inputVector) override;
+
+    };
+
+}
+
+#endif
diff --git a/Modules/Classification/CLActiveLearning/include/mitkPredictionEntropyFilter.h b/Modules/Classification/CLActiveLearning/include/mitkPredictionEntropyFilter.h
new file mode 100644
index 0000000000..02ba2f94a5
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/include/mitkPredictionEntropyFilter.h
@@ -0,0 +1,48 @@
+/*===================================================================
+
+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.
+
+===================================================================*/
+
+#ifndef mitkPredictionEntropyFilter_h
+#define mitkPredictionEntropyFilter_h
+
+#include <MitkCLActiveLearningExports.h>
+
+#include <mitkPredictionUncertaintyFilter.h>
+#include <mitkCommon.h>
+
+namespace mitk
+{
+
+    template <typename InputImageType, typename OutputImageType>
+    class MITKCLACTIVELEARNING_EXPORT PredictionEntropyFilter : public mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType>
+    {
+
+    public:
+
+        typedef mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType> SuperClassName;
+        mitkClassMacro(PredictionEntropyFilter, SuperClassName)
+        itkNewMacro(Self)
+
+    protected:
+
+//        PredictionEntropyFilter(){}
+//        ~PredictionEntropyFilter(){}
+
+        OutputPixelType CalculateUncertainty(const InputPixelType& inputVector) override;
+
+    };
+
+}
+
+#endif
diff --git a/Modules/Classification/CLActiveLearning/include/mitkPredictionMarginFilter.h b/Modules/Classification/CLActiveLearning/include/mitkPredictionMarginFilter.h
new file mode 100644
index 0000000000..841e11b681
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/include/mitkPredictionMarginFilter.h
@@ -0,0 +1,48 @@
+/*===================================================================
+
+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.
+
+===================================================================*/
+
+#ifndef mitkPredictionMarginFilter_h
+#define mitkPredictionMarginFilter_h
+
+#include <MitkCLActiveLearningExports.h>
+
+#include <mitkPredictionUncertaintyFilter.h>
+#include <mitkCommon.h>
+
+namespace mitk
+{
+
+    template <typename InputImageType, typename OutputImageType>
+    class MITKCLACTIVELEARNING_EXPORT PredictionMarginFilter : public mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType>
+    {
+
+    public:
+
+        typedef mitk::PredictionUncertaintyFilter<InputImageType, OutputImageType> SuperClassName;
+        mitkClassMacro(PredictionMarginFilter, SuperClassName)
+        itkNewMacro(Self)
+
+    protected:
+
+//        PredictionMarginFilter(){}
+//        ~PredictionMarginFilter(){}
+
+        OutputPixelType CalculateUncertainty(const InputPixelType& inputVector) override;
+
+    };
+
+}
+
+#endif
diff --git a/Modules/Classification/CLActiveLearning/src/mitkPredictionConfidenceFilter.cpp b/Modules/Classification/CLActiveLearning/src/mitkPredictionConfidenceFilter.cpp
new file mode 100644
index 0000000000..431b86b7e0
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/src/mitkPredictionConfidenceFilter.cpp
@@ -0,0 +1,34 @@
+/*===================================================================
+
+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 <mitkPredictionConfidenceFilter.h>
+#include <math.h>
+
+namespace mitk
+{
+
+    template<typename InputImageType, typename OutputImageType>
+    OutputPixelType PredictionConfidenceFilter<InputImageType, OutputImageType>::CalculateUncertainty(const InputPixelType& inputVector)
+    {
+        InputPixelType maxValue(0);
+        // Is there a better way to find the maximum of a itk::VariableLengthVector?
+        for (int i=0; i<inputVector.Size(); ++i)
+        {
+            if (inputVector[i] > maxValue) maxValue = inputVector[i];
+        }
+        return static_cast<OutputPixelType>(1 - maxValue);
+    }
+
+}
diff --git a/Modules/Classification/CLActiveLearning/src/mitkPredictionEntropyFilter.cpp b/Modules/Classification/CLActiveLearning/src/mitkPredictionEntropyFilter.cpp
new file mode 100644
index 0000000000..de4687a1f6
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/src/mitkPredictionEntropyFilter.cpp
@@ -0,0 +1,33 @@
+/*===================================================================
+
+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 <mitkPredictionEntropyFilter.h>
+#include <math.h>
+
+namespace mitk
+{
+
+    template<typename InputImageType, typename OutputImageType>
+    OutputPixelType PredictionEntropyFilter<InputImageType, OutputImageType>::CalculateUncertainty(const InputPixelType& inputVector)
+    {
+        InputPixelType result(0);
+        for (int i=0; i<inputVector.Size(); ++i)
+        {
+            result -= inputVector[i] * std::log(inputVector[i]); // The result is supposed to be negative
+        }
+        return static_cast<OutputPixelType>result;
+    }
+
+}
diff --git a/Modules/Classification/CLActiveLearning/src/mitkPredictionMarginFilter.cpp b/Modules/Classification/CLActiveLearning/src/mitkPredictionMarginFilter.cpp
new file mode 100644
index 0000000000..88eb12ff81
--- /dev/null
+++ b/Modules/Classification/CLActiveLearning/src/mitkPredictionMarginFilter.cpp
@@ -0,0 +1,42 @@
+/*===================================================================
+
+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 <mitkPredictionMarginFilter.h>
+#include <math.h>
+
+namespace mitk
+{
+
+    template<typename InputImageType, typename OutputImageType>
+    OutputPixelType PredictionMarginFilter<InputImageType, OutputImageType>::CalculateUncertainty(const InputPixelType& inputVector)
+    {
+        InputPixelType firstMax(0);
+        InputPixelType secondMax(0);
+        for (int i=0; i<inputVector.Size(); ++i)
+        {
+            if (inputVector[i] > firstMax)
+            {
+                secondMax = firstMax;
+                firstMax = inputVector[i];
+            }
+            else if (inputVector[i] > secondMax)
+            {
+                secondMax = inputVector[i];
+            }
+            return static_cast<OutputPixelType>(firstMax - secondMax);
+        }
+    }
+
+}