Index: trunk/ppStack/src/ppStack.h
===================================================================
--- trunk/ppStack/src/ppStack.h	(revision 20659)
+++ trunk/ppStack/src/ppStack.h	(revision 20711)
@@ -99,4 +99,5 @@
                                const psArray *regions, // Array with array of regions used in each PSF match
                                const psArray *kernels, // Array with array of kernels used in each PSF match
+                               const psVector *weightings, // Weighting factors for each image
                                const psVector *addVariance // Additional variance for rejection
     );
@@ -114,5 +115,6 @@
                          pmReadout *outRO,   // Output readout
                          const psArray *readouts, // Input readouts
-                         const psArray *rejected // Array with pixels rejected in each image
+                         const psArray *rejected, // Array with pixels rejected in each image
+                         const psVector *weightings // Weighting factors for each image
     );
 
@@ -142,4 +144,5 @@
                   psArray **kernels,    // Array of kernels used in each PSF matching, returned
                   float *chi2,          // Chi^2 from the stamps
+                  float *weighting,     // Stack weighting (1/noise^2)
                   const psArray *sources, // Array of sources
                   const pmPSF *psf,     // Target PSF