diff --git a/app/docks/FramePropertiesDock.cpp b/app/docks/FramePropertiesDock.cpp
index 85a6f97..4bc059c 100644
--- a/app/docks/FramePropertiesDock.cpp
+++ b/app/docks/FramePropertiesDock.cpp
@@ -184,6 +184,11 @@ FramePropertiesDock::FramePropertiesDock( QWidget* parent, bool* pbMainPlaySwitc
   labelRangeValue = new QLabel;
   labelRangeValue->setAlignment( Qt::AlignRight | Qt::AlignVCenter );
 
+  QLabel* nEBinsLabel = new QLabel( tr( "Non empty bins:" ) );
+  nEBinsLabel->setAlignment( Qt::AlignLeft | Qt::AlignVCenter );
+  labelNEBinsValue = new QLabel;
+  labelNEBinsValue->setAlignment( Qt::AlignRight | Qt::AlignVCenter );
+
   QLabel* meanLabel = new QLabel( tr( "Mean:" ) );
   meanLabel->setAlignment( Qt::AlignLeft | Qt::AlignVCenter );
   labelMeanValue = new QLabel;
@@ -212,6 +217,8 @@ FramePropertiesDock::FramePropertiesDock( QWidget* parent, bool* pbMainPlaySwitc
   statisticsLayout->addWidget( labelCountValue, gridRow++, 1 );
   statisticsLayout->addWidget( rangeLabel, gridRow, 0 );
   statisticsLayout->addWidget( labelRangeValue, gridRow++, 1 );
+  statisticsLayout->addWidget( nEBinsLabel, gridRow, 0 );
+  statisticsLayout->addWidget( labelNEBinsValue, gridRow++, 1 );
   statisticsLayout->addWidget( meanLabel, gridRow, 0 );
   statisticsLayout->addWidget( labelMeanValue, gridRow++, 1 );
   statisticsLayout->addWidget( stdDevLabel, gridRow, 0 );
@@ -274,6 +281,7 @@ void FramePropertiesDock::reset()
 
   m_iLastFrameType = -1;
 
+  labelNEBinsValue->clear();
   labelMeanValue->clear();
   labelPixelsValue->clear();
   labelStdDevValue->clear();
@@ -444,6 +452,9 @@ void FramePropertiesDock::updateStatistiques()
 
   if( frame )
   {
+    double numBins = frame->getNEBins( channel );
+    labelNEBinsValue->setText( value.setNum( (float)numBins, 'f', 0 ) );
+
     QString rangeText =
         "[" + QString::number( frame->getMinimumPelValue( channel ) ) + ":" + QString::number( frame->getMaximumPelValue( channel ) ) + "]";
     labelRangeValue->setText( rangeText );
diff --git a/app/docks/FramePropertiesDock.h b/app/docks/FramePropertiesDock.h
index 5bd2ce8..e0acc88 100644
--- a/app/docks/FramePropertiesDock.h
+++ b/app/docks/FramePropertiesDock.h
@@ -72,6 +72,7 @@ private:
   QLabel* labelPixelsValue;
   QLabel* labelCountValue;
   QLabel* labelRangeValue;
+  QLabel* labelNEBinsValue;
   QLabel* labelMeanValue;
   QLabel* labelStdDevValue;
   QLabel* labelMedianValue;
diff --git a/lib/CalypFrame.cpp b/lib/CalypFrame.cpp
index fbab86c..3473dbb 100644
--- a/lib/CalypFrame.cpp
+++ b/lib/CalypFrame.cpp
@@ -913,12 +913,45 @@ unsigned int CalypFrame::getMaximumPelValue( unsigned channel )
   {
     if( d->m_puiHistogram[i] > 0 )
     {
-      return i - indexEnd + 1;
+      return i - indexEnd - 1;
     }
   }
   return 0;
 }
 
+unsigned int CalypFrame::getNEBins( unsigned channel )
+{
+  if( !d->m_bHasHistogram )
+    return 0;
+
+  channel = d->getRealHistogramChannel( channel );
+  if( channel < 0 )
+    return 0;
+
+  int indexStart;
+  int indexEnd;
+  if( channel == HIST_ALL_CHANNELS )
+  {
+    indexStart = 0;
+    indexEnd = d->m_uiHistoChannels * d->m_uiHistoSegments;
+  }
+  else
+  {
+    indexStart = channel * d->m_uiHistoSegments;
+    indexEnd = indexStart + d->m_uiHistoSegments;
+  }
+
+  int nEBins = 0;
+  for( int i = indexStart; i < indexEnd; i++ )
+  {
+    if( d->m_puiHistogram[i] > 0 )
+    {
+      nEBins++;
+    }
+  }
+  return nEBins;
+}
+
 unsigned int CalypFrame::getMaximum( unsigned channel )
 {
   if( !d->m_bHasHistogram )
diff --git a/lib/CalypFrame.h b/lib/CalypFrame.h
index c6fe1b5..f83dc5d 100644
--- a/lib/CalypFrame.h
+++ b/lib/CalypFrame.h
@@ -361,6 +361,7 @@ public:
   int getMedian( unsigned channel, unsigned int start, unsigned int end );
   double getStdDev( unsigned channel, unsigned int start, unsigned int end );
   double getHistogramValue( unsigned channel, unsigned int bin );
+  unsigned int getNEBins( unsigned channel );
   int getNumHistogramSegment();
 
   /**