diff --git a/Plugins/org.mitk.gui.qt.photoacoustics.spectralunmixing/src/internal/SpectralUnmixingControls.ui b/Plugins/org.mitk.gui.qt.photoacoustics.spectralunmixing/src/internal/SpectralUnmixingControls.ui
index 122dd3ac62..816df94a1d 100644
--- a/Plugins/org.mitk.gui.qt.photoacoustics.spectralunmixing/src/internal/SpectralUnmixingControls.ui
+++ b/Plugins/org.mitk.gui.qt.photoacoustics.spectralunmixing/src/internal/SpectralUnmixingControls.ui
@@ -1,1011 +1,1056 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>SpectralUnmixingControls</class>
  <widget class="QWidget" name="SpectralUnmixingControls">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>398</width>
-    <height>643</height>
+    <height>666</height>
    </rect>
   </property>
   <property name="minimumSize">
    <size>
     <width>0</width>
     <height>0</height>
    </size>
   </property>
   <property name="windowTitle">
    <string>QmitkTemplate</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QLabel" name="labelWarning">
      <property name="styleSheet">
       <string notr="true">QLabel { color: rgb(255, 0, 0) }</string>
      </property>
      <property name="text">
       <string>Please select an image!</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line_2">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QLabel" name="label">
      <property name="font">
       <font>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Wavelengths settings </string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QTableWidget" name="inputtable">
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>75</height>
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       <size>
        <width>16777215</width>
        <height>75</height>
       </size>
      </property>
      <property name="font">
       <font>
        <pointsize>10</pointsize>
       </font>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief All values have to be intergers. They need to have the same order than the wavelength at the image.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="showGrid">
       <bool>true</bool>
      </property>
      <property name="gridStyle">
       <enum>Qt::SolidLine</enum>
      </property>
      <attribute name="horizontalHeaderDefaultSectionSize">
       <number>42</number>
      </attribute>
      <attribute name="horizontalHeaderMinimumSectionSize">
       <number>50</number>
      </attribute>
      <attribute name="verticalHeaderDefaultSectionSize">
       <number>30</number>
      </attribute>
      <attribute name="verticalHeaderMinimumSectionSize">
       <number>30</number>
      </attribute>
      <row>
       <property name="text">
        <string>λ [nm]</string>
       </property>
      </row>
      <column>
       <property name="text">
        <string>1</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>2</string>
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      <column>
       <property name="text">
        <string>3</string>
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      </column>
      <column>
       <property name="text">
        <string>4</string>
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      </column>
      <column>
       <property name="text">
        <string>5</string>
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      </column>
      <column>
       <property name="text">
        <string>6</string>
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      </column>
      <column>
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        <string>7</string>
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      </column>
      <column>
       <property name="text">
        <string>8</string>
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      </column>
      <column>
       <property name="text">
        <string>9</string>
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      </column>
      <column>
       <property name="text">
        <string>10</string>
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      </column>
      <column>
       <property name="text">
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      <column>
       <property name="text">
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      <column>
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      <column>
       <property name="text">
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      <column>
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      <column>
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        <string>16</string>
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      </column>
      <column>
       <property name="text">
        <string>17</string>
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      </column>
      <column>
       <property name="text">
        <string>18</string>
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      </column>
      <column>
       <property name="text">
        <string>19</string>
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      </column>
      <column>
       <property name="text">
        <string>20</string>
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      </column>
      <column>
       <property name="text">
        <string>21</string>
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      <column>
       <property name="text">
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      <column>
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      <column>
       <property name="text">
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      <column>
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      <column>
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      <column>
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        <string>27</string>
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      <column>
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        <string/>
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      <item row="0" column="26">
       <property name="text">
        <string/>
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      <item row="0" column="27">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="28">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="29">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="30">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="31">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="32">
       <property name="text">
        <string/>
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      </item>
      <item row="0" column="33">
       <property name="text">
        <string/>
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      </item>
      <item row="0" column="34">
       <property name="text">
        <string/>
       </property>
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      <item row="0" column="35">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="36">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="37">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="38">
       <property name="text">
        <string/>
       </property>
      </item>
      <item row="0" column="39">
       <property name="text">
        <string/>
       </property>
      </item>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line_4">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QLabel" name="label_2">
      <property name="font">
       <font>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:400;&quot;&gt;* \brief Select as least one Absorber. It's not possible to select more absorbers then wavelengths.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Chromophore selection</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxOx">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief One of the main absorbers in near infrared spectrum.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Oxyhemoglobin</string>
      </property>
      <property name="checked">
       <bool>true</bool>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxDeOx">
      <property name="enabled">
       <bool>true</bool>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief One of the main absorbers in near infrared spectrum.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Deoxygenated hemoglobin</string>
      </property>
      <property name="checkable">
       <bool>true</bool>
      </property>
      <property name="checked">
       <bool>true</bool>
      </property>
      <property name="tristate">
       <bool>false</bool>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxMelanin">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief One of the main absorbers in near infrared spectrum.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Melanin</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxAdd">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief This endmember will be unmixed with 1 at all wavelgnths.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Static Endmember</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line_5">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QLabel" name="label_3">
      <property name="font">
       <font>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:400;&quot;&gt;* \brief One needs to choose an spectral unmixing algorithm.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Unmixing algorithm</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QComboBox" name="QComboBoxAlgorithm">
      <property name="enabled">
       <bool>true</bool>
      </property>
      <property name="font">
       <font>
        <family>MS Shell Dlg 2</family>
       </font>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief For detailed information about the algorithms please have a look at the documentation.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="editable">
       <bool>false</bool>
      </property>
      <property name="maxVisibleItems">
       <number>21</number>
      </property>
      <property name="maxCount">
       <number>2147483647</number>
      </property>
      <item>
       <property name="text">
        <string>==CHOSE ALGORITHM==</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>==QR decomposition==</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>householderQr</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>colPivHouseholderQr</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>fullPivHouseholderQr</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>==LU decompositon</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>fullPivLu</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>==Cholesky decompostion==</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>ldlt</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string comment="43" extracomment="ewrwer">llt</string>
       </property>
       <property name="icon">
        <iconset>
         <normaloff>.</normaloff>.</iconset>
       </property>
      </item>
      <item>
       <property name="text">
        <string>==Least squares==</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>LS</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>jacobiSvd</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>NNLARS</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>NNGoldfarb</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>weighted</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>==Others==</string>
       </property>
      </item>
      <item>
       <property name="text">
        <string>SimplexMax</string>
       </property>
      </item>
     </widget>
    </item>
    <item>
     <widget class="QTableWidget" name="tableWeight">
      <property name="enabled">
       <bool>true</bool>
      </property>
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>75</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>380</width>
        <height>81</height>
       </size>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief the weights are at the same order as the wavelength&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="autoFillBackground">
       <bool>false</bool>
      </property>
      <property name="dragEnabled">
       <bool>false</bool>
      </property>
      <row>
       <property name="text">
        <string>Weights [%]</string>
       </property>
      </row>
      <column>
       <property name="text">
        <string>1</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>2</string>
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      <column>
       <property name="text">
        <string>3</string>
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      <column>
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        <string>4</string>
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      </column>
      <column>
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        <string>5</string>
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      </column>
      <column>
       <property name="text">
        <string>6</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>7</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>8</string>
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      </column>
      <column>
       <property name="text">
        <string>9</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>10</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>11</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>12</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>13</string>
       </property>
      </column>
      <column>
       <property name="text">
        <string>14</string>
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      </column>
      <column>
       <property name="text">
        <string>15</string>
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      </column>
      <column>
       <property name="text">
        <string>16</string>
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      </column>
      <column>
       <property name="text">
        <string>17</string>
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      <column>
       <property name="text">
        <string>18</string>
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      <column>
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        <string>20</string>
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      <item row="0" column="0">
       <property name="text">
        <string>60</string>
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      <item row="0" column="1">
       <property name="text">
        <string>85</string>
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      <item row="0" column="2">
       <property name="text">
        <string>90</string>
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      </item>
      <item row="0" column="3">
       <property name="text">
        <string>69</string>
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      <item row="0" column="4">
       <property name="text">
        <string>52</string>
       </property>
      </item>
      <item row="0" column="11">
       <property name="text">
        <string/>
       </property>
      </item>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line_6">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QLabel" name="label_4">
      <property name="font">
       <font>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Oxygen saturation</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxsO2">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief calculates HbO2/(HbO2+Hb) if De- and oxyhemoglobin are selected.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>calculate sO2</string>
      </property>
      <property name="checked">
       <bool>false</bool>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QTableWidget" name="tableSO2">
      <property name="maximumSize">
       <size>
        <width>380</width>
        <height>82</height>
       </size>
      </property>
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief below threshold calculated sO2 value will set to zero&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <row>
       <property name="text">
-       <string>Value</string>
+       <string>Threshold</string>
       </property>
      </row>
      <column>
       <property name="text">
-       <string>Min Hb</string>
+       <string>Hb</string>
+      </property>
+      <property name="toolTip">
+       <string/>
       </property>
      </column>
      <column>
       <property name="text">
-       <string>Min HbO2</string>
+       <string>HbO2</string>
       </property>
      </column>
      <column>
       <property name="text">
-       <string>Min Sum</string>
+       <string>Sum</string>
       </property>
      </column>
      <column>
       <property name="text">
-       <string>Min SO2 %</string>
+       <string>SO2 %</string>
       </property>
      </column>
      <item row="0" column="0">
       <property name="text">
        <string>100</string>
       </property>
      </item>
      <item row="0" column="1">
       <property name="text">
        <string>200</string>
       </property>
      </item>
      <item row="0" column="2">
       <property name="text">
        <string>200</string>
       </property>
      </item>
      <item row="0" column="3">
       <property name="text">
        <string>50</string>
       </property>
      </item>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QLabel" name="label_5">
      <property name="font">
       <font>
        <weight>75</weight>
        <bold>true</bold>
       </font>
      </property>
      <property name="text">
       <string>Additional Settings</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxVerbose">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief This mode will give additional console outputs for debugging.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Verbose Mode (additional console outputs)</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxChrono">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief This checkbox will start Chrono and takes the time between clicking of the &amp;quot;Perform spectral unmixing&amp;quot; button until the GUI enables again.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Chrono</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QCheckBox" name="checkBoxError">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;* \brief Calculates the realtive error between unmixing result and the input image in the L2 norm.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
      <property name="text">
       <string>Relative error image</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QPushButton" name="buttonPerformImageProcessing">
      <property name="toolTip">
       <string>Do image processing</string>
      </property>
      <property name="text">
       <string>Perform spectral unmixing</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line_3">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
      </property>
      <property name="sizeHint" stdset="0">
       <size>
        <width>20</width>
        <height>40</height>
       </size>
      </property>
     </spacer>
    </item>
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources/>
  <connections/>
 </ui>