Index: trunk/psModules/src/imcombine/pmSubtractionKernels.c
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionKernels.c	(revision 15357)
+++ trunk/psModules/src/imcombine/pmSubtractionKernels.c	(revision 15360)
@@ -495,5 +495,5 @@
         int fibIndex = 1, fibIndexMinus1 = 0; // Fibonnacci parameters
         int radius = inner;
-        while (radius < size) {
+        while (radius + fibIndex < size) {
             radius++;
             int fibNew = fibIndex + fibIndexMinus1;