Index: trunk/psModules/src/camera/pmFPAMaskWeight.c
===================================================================
--- trunk/psModules/src/camera/pmFPAMaskWeight.c	(revision 9730)
+++ trunk/psModules/src/camera/pmFPAMaskWeight.c	(revision 9830)
@@ -38,4 +38,5 @@
         }
         masks->data[i] = psImageAlloc(image->numCols, image->numRows, PS_TYPE_U8);
+        psImageInit(masks->data[i], 0);
     }
 
@@ -119,4 +120,5 @@
         // Generate a (throwaway) mask image, if required
         readout->mask = psImageAlloc(image->numCols, image->numRows, PS_TYPE_U8);
+        psImageInit(readout->mask, 0);
     }
     psImage *mask = readout->mask;      // The mask pixels