Index: trunk/psModules/src/camera/pmFPAMaskWeight.h
===================================================================
--- trunk/psModules/src/camera/pmFPAMaskWeight.h	(revision 13591)
+++ trunk/psModules/src/camera/pmFPAMaskWeight.h	(revision 17249)
@@ -5,6 +5,6 @@
  * @author Eugene Magnier, IfA
  *
- * @version $Revision: 1.9 $ $Name: not supported by cvs2svn $
- * @date $Date: 2007-06-02 03:51:03 $
+ * @version $Revision: 1.10 $ $Name: not supported by cvs2svn $
+ * @date $Date: 2008-03-31 22:39:06 $
  * Copyright 2005-2006 Institute for Astronomy, University of Hawaii
  */
@@ -93,4 +93,19 @@
                               bool poisson ///< Use poisson weights (in addition to read noise)?
                              );
+
+/// Renormalise the weight map to match the actual variance
+///
+/// The variance in the image is measured in patches, and the variance map is adjusted so that the mean for
+/// that patch corresponds.
+bool pmReadoutWeightRenorm(const pmReadout *readout, // Readout to normalise
+                           psMaskType maskVal, // Value to mask
+                           psStatsOptions meanStat, // Statistic to measure the mean (of the variance map)
+                           psStatsOptions stdevStat, // Statistic to measure the stdev (of the image)
+                           int width,   // Width of patch (pixels)
+                           psRandom *rng // Random number generator (for sub-sampling images)
+    );
+
+
+
 /// @}
 #endif