Index: trunk/ppBackground/src/ppBackground.h
===================================================================
--- trunk/ppBackground/src/ppBackground.h	(revision 28280)
+++ trunk/ppBackground/src/ppBackground.h	(revision 28296)
@@ -39,5 +39,6 @@
 /// Restore the background to an image
 bool ppBackgroundRestore(
-    pmChip *chip,                       // Input chip
+    pmChip *out,                        // Output chip
+    const pmChip *chip,                 // Input chip
     const pmChip *background,           // Chip with background model
     const pmChip *pattern,              // Chip with pattern