Index: trunk/ppStack/src/ppStackLoop.c
===================================================================
--- trunk/ppStack/src/ppStackLoop.c	(revision 17006)
+++ trunk/ppStack/src/ppStackLoop.c	(revision 17007)
@@ -473,5 +473,5 @@
                                              subKernels->data[i]); // Pixels to reject
             psFree(inspect);
-            float frac = reject->n / (float)(ro->image->numCols * ro->image->numRows); // Pixel fraction
+            float frac = reject->n / (float)(outRO->image->numCols * outRO->image->numRows); // Pixel fraction
             psTrace("ppStack", 5, "%ld pixels rejected from image %d (%.1f%%)", reject->n, i, frac * 100.0);
             if (frac > imageRej) {