diff --git a/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.cpp b/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.cpp
index e5da2a6eba..507ecd6e43 100644
--- a/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.cpp
+++ b/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.cpp
@@ -1,156 +1,144 @@
 /*===================================================================
 
 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 "QmitkHistogramVisualizationWidget.h"
 
 #include <QClipboard>
 
 QmitkHistogramVisualizationWidget::QmitkHistogramVisualizationWidget(QWidget* parent) : QWidget(parent)
 {
 	m_Controls.setupUi(this);
-  #if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-    m_Controls.labelHistogramIsInvisibleWarning->setVisible(true);
-    m_Controls.labelHistogramIsInvisibleWarning->setText("<font color = 'red'>Histogram is not visible because Qt 5.10 is required for MitkChart. You can use the button <i>Copy to Clipboard</i> below to retrieve values.< / font>");
-    m_Controls.groupBoxPlot->setVisible(false);
-    m_Controls.chartWidget->setVisible(false);
-  #else
-    m_Controls.labelHistogramIsInvisibleWarning->setVisible(false);
-    m_Controls.checkBoxShowSubchart->setChecked(false);
-  #endif
+  m_Controls.checkBoxShowSubchart->setChecked(false);
   m_Controls.spinBoxNBins->setValue(m_DefaultNBins);
   m_Controls.spinBoxNBins->setMinimum(m_MinNBins);
   m_Controls.spinBoxNBins->setMaximum(m_MaxNBins);
 
   CreateConnections();
 }
 
 void QmitkHistogramVisualizationWidget::SetHistogram(itk::Statistics::Histogram<double>::ConstPointer histogram, const std::string& dataLabel)
 {
 	if (histogram == nullptr)
 		return;
 
 	m_Histogram = histogram;
 	m_Controls.chartWidget->AddData2D(ConvertHistogramToMap(m_Histogram), dataLabel);
 	m_Controls.chartWidget->SetChartType(dataLabel, QmitkChartWidget::ChartType::bar);
 	m_Controls.chartWidget->SetXAxisLabel("Gray value");
 	m_Controls.chartWidget->SetYAxisLabel("Frequency");
-  #if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
-    m_Controls.chartWidget->Show(m_Controls.checkBoxShowSubchart->isChecked());
-  #endif
+  m_Controls.chartWidget->Show(m_Controls.checkBoxShowSubchart->isChecked());
 	SetGUIElementsEnabled(true);
 }
 
 void QmitkHistogramVisualizationWidget::Reset()
 {
-  #if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
-    m_Controls.chartWidget->Clear();
-  #endif
+  m_Controls.chartWidget->Clear();
 	SetGUIElementsEnabled(false);
 }
 
 void QmitkHistogramVisualizationWidget::SetTheme(QmitkChartWidget::ChartStyle style)
 {
   m_ChartStyle = style;
 }
 
 void QmitkHistogramVisualizationWidget::CreateConnections()
 {
 	connect(m_Controls.buttonCopyHistogramToClipboard, &QPushButton::clicked, this, &QmitkHistogramVisualizationWidget::OnClipboardButtonClicked);
 	connect(m_Controls.checkBoxUseDefaultNBins, &QCheckBox::clicked, this, &QmitkHistogramVisualizationWidget::OnDefaultNBinsCheckBoxChanged);
 	connect(m_Controls.spinBoxNBins, &QSpinBox::editingFinished, this, &QmitkHistogramVisualizationWidget::OnNBinsSpinBoxValueChanged);
 	connect(m_Controls.checkBoxShowSubchart, &QCheckBox::clicked, this, &QmitkHistogramVisualizationWidget::OnShowSubchartCheckBoxChanged);
   connect(m_Controls.chartWidget, &QmitkChartWidget::PageSuccessfullyLoaded, this, &QmitkHistogramVisualizationWidget::OnPageSuccessfullyLoaded);
 }
 
 void QmitkHistogramVisualizationWidget::SetGUIElementsEnabled(bool enabled)
 {
 	this->setEnabled(enabled);
 	m_Controls.groupBoxPlot->setEnabled(enabled);
 	m_Controls.checkBoxShowSubchart->setEnabled(enabled);
 	m_Controls.checkBoxUseDefaultNBins->setEnabled(enabled);
 	m_Controls.spinBoxNBins->setEnabled(!m_Controls.checkBoxUseDefaultNBins->isChecked());
 	m_Controls.buttonCopyHistogramToClipboard->setEnabled(enabled);
 }
 
 std::map<double, double> QmitkHistogramVisualizationWidget::ConvertHistogramToMap(itk::Statistics::Histogram<double>::ConstPointer histogram) const
 {
 	std::map<double, double> histogramMap;
 	if (histogram)
 	{
 		auto endIt = histogram->End();
 		auto it = histogram->Begin();
 
 		// generating Lists of measurement and frequencies
 		for (; it != endIt; ++it)
 		{
 			double frequency = it.GetFrequency();
 			double measurement = it.GetMeasurementVector()[0];
 			histogramMap.emplace(measurement, frequency);
 		}
 
 	}
 	return histogramMap;
 }
 
 void QmitkHistogramVisualizationWidget::OnClipboardButtonClicked()
 {
 	if (m_Histogram)
 	{
 		QApplication::clipboard()->clear();
 		QString clipboard("Measurement \t Frequency\n");
 		auto iter = m_Histogram->Begin();
 		auto iterEnd = m_Histogram->End();
 		for (; iter != iterEnd; ++iter)
 		{
 			clipboard = clipboard.append("%L1 \t %L2\n")
 				.arg(iter.GetMeasurementVector()[0], 0, 'f', 2)
 				.arg(iter.GetFrequency());
 		}
 
 		QApplication::clipboard()->setText(clipboard, QClipboard::Clipboard);
 	}
 }
 
 void QmitkHistogramVisualizationWidget::OnDefaultNBinsCheckBoxChanged()
 {
 	if (m_Controls.checkBoxUseDefaultNBins->isChecked())
 	{
 		m_Controls.spinBoxNBins->setEnabled(false);
     if (m_Controls.spinBoxNBins->value() != static_cast<int>(m_DefaultNBins) ) {
       m_Controls.spinBoxNBins->setValue(m_DefaultNBins);
       OnNBinsSpinBoxValueChanged();
     }
 	}
 	else
 	{
 		m_Controls.spinBoxNBins->setEnabled(true);
 	}
 }
 
 void QmitkHistogramVisualizationWidget::OnNBinsSpinBoxValueChanged()
 {
 	emit RequestHistogramUpdate(m_Controls.spinBoxNBins->value());
 }
 
 void QmitkHistogramVisualizationWidget::OnShowSubchartCheckBoxChanged()
 {
 	m_Controls.chartWidget->Show(m_Controls.checkBoxShowSubchart->isChecked());
 }
 
 void QmitkHistogramVisualizationWidget::OnPageSuccessfullyLoaded()
 {
   m_Controls.chartWidget->SetTheme(m_ChartStyle);
 }
diff --git a/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.ui b/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.ui
index 138efa3fe1..22c9133f14 100644
--- a/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.ui
+++ b/Modules/ImageStatisticsUI/Qmitk/QmitkHistogramVisualizationWidget.ui
@@ -1,297 +1,193 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>QmitkHistogramVisualizationControls</class>
  <widget class="QWidget" name="QmitkHistogramVisualizationControls">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>540</width>
     <height>394</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
-   <item>
-    <widget class="QLabel" name="labelHistogramIsInvisibleWarning">
-     <property name="enabled">
-      <bool>false</bool>
-     </property>
-     <property name="palette">
-      <palette>
-       <active>
-        <colorrole role="WindowText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="Text">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="ButtonText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-       </active>
-       <inactive>
-        <colorrole role="WindowText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="Text">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="ButtonText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>255</red>
-           <green>0</green>
-           <blue>0</blue>
-          </color>
-         </brush>
-        </colorrole>
-       </inactive>
-       <disabled>
-        <colorrole role="WindowText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>120</red>
-           <green>120</green>
-           <blue>120</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="Text">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>120</red>
-           <green>120</green>
-           <blue>120</blue>
-          </color>
-         </brush>
-        </colorrole>
-        <colorrole role="ButtonText">
-         <brush brushstyle="SolidPattern">
-          <color alpha="255">
-           <red>120</red>
-           <green>120</green>
-           <blue>120</blue>
-          </color>
-         </brush>
-        </colorrole>
-       </disabled>
-      </palette>
-     </property>
-     <property name="text">
-      <string/>
-     </property>
-     <property name="wordWrap">
-      <bool>true</bool>
-     </property>
-    </widget>
-   </item>
    <item>
     <widget class="QGroupBox" name="groupBoxPlot">
      <property name="enabled">
       <bool>false</bool>
      </property>
      <property name="sizePolicy">
       <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
        <horstretch>0</horstretch>
        <verstretch>0</verstretch>
       </sizepolicy>
      </property>
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>0</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>16777215</width>
        <height>16777215</height>
       </size>
      </property>
      <property name="title">
       <string>Plot</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_5">
       <item>
        <widget class="QCheckBox" name="checkBoxShowSubchart">
         <property name="text">
          <string>Show Subchart</string>
         </property>
         <property name="checked">
          <bool>true</bool>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QCheckBox" name="checkBoxUseDefaultNBins">
         <property name="text">
          <string>Use default #bins</string>
         </property>
         <property name="checked">
          <bool>true</bool>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QFrame" name="FrameBinSize">
         <property name="frameShape">
          <enum>QFrame::NoFrame</enum>
         </property>
         <property name="frameShadow">
          <enum>QFrame::Raised</enum>
         </property>
         <layout class="QGridLayout" name="gridLayout_2">
          <property name="leftMargin">
           <number>0</number>
          </property>
          <property name="topMargin">
           <number>0</number>
          </property>
          <property name="rightMargin">
           <number>0</number>
          </property>
          <property name="bottomMargin">
           <number>0</number>
          </property>
          <property name="spacing">
           <number>0</number>
          </property>
          <item row="1" column="0">
           <widget class="QLabel" name="labelNBins">
            <property name="minimumSize">
             <size>
              <width>60</width>
              <height>0</height>
             </size>
            </property>
            <property name="maximumSize">
             <size>
              <width>100</width>
              <height>16777215</height>
             </size>
            </property>
            <property name="text">
             <string># bins:</string>
            </property>
           </widget>
          </item>
          <item row="1" column="1">
           <widget class="QSpinBox" name="spinBoxNBins">
            <property name="enabled">
             <bool>false</bool>
            </property>
            <property name="toolTip">
             <string>Press enter to recalculate statistics with new bin size.</string>
            </property>
            <property name="minimum">
             <number>1</number>
            </property>
            <property name="maximum">
             <number>10000</number>
            </property>
            <property name="value">
             <number>100</number>
            </property>
           </widget>
          </item>
         </layout>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
    <item>
     <widget class="QmitkChartWidget" name="chartWidget" native="true"/>
    </item>
    <item>
     <widget class="QWidget" name="widgetClipboard" native="true">
      <layout class="QHBoxLayout" name="horizontalLayout_3">
       <property name="spacing">
        <number>0</number>
       </property>
       <property name="leftMargin">
        <number>0</number>
       </property>
       <property name="topMargin">
        <number>0</number>
       </property>
       <property name="rightMargin">
        <number>0</number>
       </property>
       <property name="bottomMargin">
        <number>0</number>
       </property>
       <item>
        <widget class="QPushButton" name="buttonCopyHistogramToClipboard">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="text">
          <string>Copy to Clipboard</string>
         </property>
        </widget>
       </item>
       <item>
        <spacer name="horizontalSpacer_2">
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
         </property>
         <property name="sizeHint" stdset="0">
          <size>
           <width>40</width>
           <height>20</height>
          </size>
         </property>
        </spacer>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
  <customwidgets>
   <customwidget>
    <class>QmitkChartWidget</class>
    <extends>QWidget</extends>
    <header location="global">QmitkChartWidget.h</header>
   </customwidget>
  </customwidgets>
  <resources/>
  <connections/>
 </ui>