Index: trunk/psModules/src/detrend/pmBias.h
===================================================================
--- trunk/psModules/src/detrend/pmBias.h	(revision 14505)
+++ trunk/psModules/src/detrend/pmBias.h	(revision 18893)
@@ -5,6 +5,6 @@
  * @author Paul Price, IfA
  *
- * @version $Revision: 1.7 $ $Name: not supported by cvs2svn $
- * @date $Date: 2007-08-15 20:21:18 $
+ * @version $Revision: 1.8 $ $Name: not supported by cvs2svn $
+ * @date $Date: 2008-08-05 01:24:47 $
  * Copyright 2004--2006 Institute for Astronomy, University of Hawaii
  */
@@ -22,6 +22,6 @@
 bool pmBiasSubtract(pmReadout *in,      ///< Input readout, to be overscan/bias/dark corrected
                     pmOverscanOptions *overscanOpts, ///< Options for overscan subtraction, or NULL
-                    const pmReadout *bias, ///< Bias to subtract, or NULL
-                    const pmReadout *dark, ///< Dark to scale and subtract, or NULL
+                    pmReadout *bias, ///< Bias to subtract, or NULL
+                    pmReadout *dark, ///< Dark to scale and subtract, or NULL
                     const pmFPAview *view ///< View for readout of interest
                    );
@@ -30,7 +30,10 @@
 // image.  The bias image is subtracted in place from the input image.
 bool pmBiasSubtractFrame(pmReadout *in, // Input readout
-                          const pmReadout *sub, // Readout to be subtracted from input
-                          float scale   // Scale to apply before subtracting
+			 pmReadout *sub, // Readout to be subtracted from input
+			 float scale   // Scale to apply before subtracting
     );
+
+bool pmBiasSubtractScan_Threaded (psThreadJob *job);
+bool pmBiasSubtractScan (pmReadout *in, pmReadout *sub, float scan, int xOffset, int yOffset, int rowStart, int rowStop);
 
 /// @}