Index: trunk/src/transform_field/ima2concentration.m
===================================================================
--- trunk/src/transform_field/ima2concentration.m	(revision 1074)
+++ trunk/src/transform_field/ima2concentration.m	(revision 1075)
@@ -22,9 +22,11 @@
 
 %% request input parameters
-if isfield(DataIn,'Action') && isfield(DataIn.Action,'RUN') && isequal(DataIn.Action.RUN,0)
-    if ~isfield(XmlData,'LIFCalib')
+DataOut=[];
+if (isfield(DataIn,'Action') && isfield(DataIn.Action,'RUN') && isequal(DataIn.Action.RUN,0))
+    return
+end
+if ~isfield(XmlData,'LIFCalib')
         msgbox_uvmat('ERROR','no LIF calibration data available, first run LIFCalib in uvmat')
     return
-    end
 end
 cpath=which('uvmat');