Index: /branches/eam_branches/20091201/psModules/src/imcombine/pmSubtractionKernels.c
===================================================================
--- /branches/eam_branches/20091201/psModules/src/imcombine/pmSubtractionKernels.c	(revision 26589)
+++ /branches/eam_branches/20091201/psModules/src/imcombine/pmSubtractionKernels.c	(revision 26590)
@@ -211,5 +211,5 @@
             // Odd functions: choose normalisation so that parameters have about the same strength as for even
             // functions, no subtraction of null pixel because the sum is already (near) zero
-            scale2D = 1.0 / max;
+            scale2D = 1.0 / sqrt(sum2);
             zeroNull = false;
         }
@@ -226,5 +226,5 @@
     if (!forceZeroNull && ((uOrder % 2) || (vOrder % 2))) {
         // Odd function
-        scale2D = 1.0 / max;
+        scale2D = 1.0 / sqrt(sum2);
     }