diff --git a/ipcam-apps/CameraApp/Control/AutomaticCompensation.cpp b/ipcam-apps/CameraApp/Control/AutomaticCompensation.cpp
index dde96d6..a18fa87 100755
--- a/ipcam-apps/CameraApp/Control/AutomaticCompensation.cpp
+++ b/ipcam-apps/CameraApp/Control/AutomaticCompensation.cpp
@@ -1,5 +1,6 @@
 //
 // Author: Fionn Behrens, kernelconcepts
+//         Simon Budig, kernelconcepts
 //
 
 extern "C" {
@@ -390,6 +391,22 @@ void AutomaticCompensation::DoNextFrame(GrabFrontend &grabber, CameraConfig &cfg
       }
     }
     
+    {
+      double avgU, avgV;
+      double varU, varV;
+
+      avgU = ((double) stat.SumU)  / (stat.NumPixel / 4);
+      avgV = ((double) stat.SumV)  / (stat.NumPixel / 4);
+      varU = ((double) stat.Sum2U) / (stat.NumPixel / 4);
+      varV = ((double) stat.Sum2V) / (stat.NumPixel / 4);
+
+      varU -= avgU * avgU;
+      varV -= avgV * avgV;
+
+      // FIXME: immer noch unplausible Werte. Warum kommt da manchmal eine negative Varianz raus???
+      fprintf (stderr, "avg: %7.3f, %7.3f -- varianz: %7.3f, %7.3f\n", avgU, avgV, varU, varV);
+    }
+
     if (CameraConfig::IR_FILTER_AUTO == cfg.ImageControls.IRFilterMode) {
       if (thres > out.ir_open_thres &&
           cfg.ImageControls.IRFilterState != CameraConfig::IR_FILTER_OPEN) {
diff --git a/ipcam-apps/CameraApp/Control/FrameDispatcher.cpp b/ipcam-apps/CameraApp/Control/FrameDispatcher.cpp
index 7e1b0bc..4e075ed 100755
--- a/ipcam-apps/CameraApp/Control/FrameDispatcher.cpp
+++ b/ipcam-apps/CameraApp/Control/FrameDispatcher.cpp
@@ -925,8 +925,36 @@ void FrameDispatcher::LoopFrames() {
 				f->pGlobalStringTable = &GlobalStringTable;
 
 				// Get statistics for this image (compensator is started later)...
-				Grabber.UpdateAnalogStatistics(stat, f->GetTimestamp(), 16, 240);
+				Grabber.UpdateAnalogStatistics (stat, f->GetTimestamp(), 16, 240);
 
+#if 1
+#warning REMOVE Variance Calculation when implemented in the FPGA
+				{
+				  PixelDimension dim;
+				  unsigned char *data;
+				  int i;
+
+				  data = f->GetPayload();
+				  dim = f->GetSize ();
+
+				  stat.SumU  = 0;
+				  stat.Sum2U = 0;
+				  stat.SumV  = 0;
+				  stat.Sum2V = 0;
+				  if (f->GetVideomode() == 0) {
+				    for (i = 0; i < dim.Width * dim.Height / 4; i++) {
+				      stat.SumU  += data [dim.Width * dim.Height + i];
+				      stat.Sum2U += ((int) data [dim.Width * dim.Height + i]) *
+				                    data [dim.Width * dim.Height + i];
+				    }
+				    for (i = 0; i < dim.Width * dim.Height / 4; i++) {
+				      stat.SumV  += data [dim.Width * dim.Height / 4 * 5 + i];
+				      stat.Sum2V += ((int) data [dim.Width * dim.Height / 4 * 5 + i]) *
+				                    data [dim.Width * dim.Height / 4 * 5 + i];
+				    }
+				  }
+				}
+#endif
 
 				// Things we only do in normal mode
 				if(CameraConfig::OM_NORMAL == loop_mode) {
diff --git a/ipcam-apps/CameraApp/Grabber/AnalogStatistics.hpp b/ipcam-apps/CameraApp/Grabber/AnalogStatistics.hpp
index 7ad4357..80fe31a 100755
--- a/ipcam-apps/CameraApp/Grabber/AnalogStatistics.hpp
+++ b/ipcam-apps/CameraApp/Grabber/AnalogStatistics.hpp
@@ -13,6 +13,10 @@ struct AnalogStatistics {
   	unsigned int SumRed;		///< Sum of all red pixel
   	unsigned int SumGreen;		///< Sum of all green pixel
   	unsigned int SumBlue;		///< Sum of all blue pixel
+  	unsigned int SumU;		///< Sum of all U values
+  	unsigned long long Sum2U;	///< Sum of all U values^2
+  	unsigned int SumV;		///< Sum of all V values
+  	unsigned long long Sum2V;	///< Sum of all V values^2
 
   	void print() {
   		DEBUG(LEVEL_ALWAYS, "IMAGE-STATISTICS:\n");