Index: /trunk/archive/pslib/include/psImage.h
===================================================================
--- /trunk/archive/pslib/include/psImage.h	(revision 279)
+++ /trunk/archive/pslib/include/psImage.h	(revision 280)
@@ -22,4 +22,5 @@
 	psF32 **rows_f32;		///< pointers to psF32 data 
 	psF64 **rows_f64;		///< pointers to psF64 data 
+	psComplex **rows_complex;	//!< pointers to psComplex data
     } rows;
     psImage *parent;			///< parent, if a subimage 
@@ -244,7 +245,8 @@
 
 /*** image FFT operations ***/
-/// Perform an FFT on the image.
-psImage *
-psImageFFT(psImage *input, 		///< image to FFT
+/// Perform an FFT on the image.  The output image type is psComplex.
+psImage *
+psImageFFT(psImage *output,		//!< Output image
+	   const psImage *input,	///< image to FFT
 	   int direction		///< FFT direction 
     );