Index: trunk/psModules/src/detrend/pmBias.h
===================================================================
--- trunk/psModules/src/detrend/pmBias.h	(revision 19299)
+++ trunk/psModules/src/detrend/pmBias.h	(revision 19432)
@@ -5,6 +5,6 @@
  * @author Paul Price, IfA
  *
- * @version $Revision: 1.10 $ $Name: not supported by cvs2svn $
- * @date $Date: 2008-08-30 02:28:07 $
+ * @version $Revision: 1.11 $ $Name: not supported by cvs2svn $
+ * @date $Date: 2008-09-09 04:10:14 $
  * Copyright 2004--2006 Institute for Astronomy, University of Hawaii
  */
@@ -27,5 +27,6 @@
                    );
 
-// pmBiasSubtractFrame(): this routine will take as input a readout for the input image and a readout for the bias
+// pmBiasSubtractFrame
+// this routine will take as input a readout for the input image and a readout for the bias
 // image.  The bias image is subtracted in place from the input image.
 bool pmBiasSubtractFrame(pmReadout *in, // Input readout
@@ -34,6 +35,16 @@
     );
 
-bool pmBiasSubtractScan_Threaded(psThreadJob *job);
-bool pmBiasSubtractScan (pmReadout *in, pmReadout *sub, float scan, int xOffset, int yOffset, int rowStart, int rowStop);
+/// Thread entry point for bias subtraction
+bool pmBiasSubtractScan_Threaded(psThreadJob *job ///< Job to execute
+    );
+
+/// Do bias subtraction for a scan
+bool pmBiasSubtractScan(
+    pmReadout *in,                      ///< Input image to correct
+    const pmReadout *sub,               ///< Bias+dark image to subtract
+    float scale,                        ///< Scale to apply
+    int xOffset, int yOffset,           ///< Offset between input and bias images
+    int rowStart, int rowStop           ///< Scan range
+    );
 
 /// @}