Index: trunk/ppStack/src/ppStackLoop.c
===================================================================
--- trunk/ppStack/src/ppStackLoop.c	(revision 19346)
+++ trunk/ppStack/src/ppStackLoop.c	(revision 19347)
@@ -649,5 +649,6 @@
 #ifdef TESTING
             {
-                psImage *mask = psPixelsToMask(NULL, inspect, psRegionSet(0, numCols - 1, 0, numRows - 1),
+                psImage *mask = psPixelsToMask(NULL, inspect->data[i],
+                                               psRegionSet(0, numCols - 1, 0, numRows - 1),
                                                0xff); // Mask image
                 psString name = NULL;           // Name of image