Index: trunk/psLib/src/imageops/psImageMap.c
===================================================================
--- trunk/psLib/src/imageops/psImageMap.c	(revision 15598)
+++ trunk/psLib/src/imageops/psImageMap.c	(revision 15599)
@@ -7,6 +7,6 @@
  *  @author Eugene Magnier, IfA
  *
- *  @version $Revision: 1.6 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2007-11-13 18:23:17 $
+ *  @version $Revision: 1.7 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2007-11-13 18:28:02 $
  *
  *  Copyright 2007 Institute for Astronomy, University of Hawaii
@@ -49,5 +49,5 @@
 
 psImageMap *psImageMapAlloc(const psImage *field, psImageBinning *binning, psStats *stats) {
-
+    PS_ASSERT_IMAGE_NON_NULL(field, NULL);
     assert (binning);
     assert (stats);