Index: trunk/psModules/src/imcombine/pmSubtractionParams.c
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionParams.c	(revision 14734)
+++ trunk/psModules/src/imcombine/pmSubtractionParams.c	(revision 14735)
@@ -247,5 +247,5 @@
 
         for (int v = -footprint; v <= footprint; v++) {
-            psF32 *wt = weight->kernel[v]; // Dereference weight map
+            psF32 *wt = &weight->kernel[v][-footprint]; // Dereference weight map
             for (int u = -footprint; u <= footprint; u++, wt++) {
                 sum1 += 1.0 / *wt;