Index: trunk/psLib/src/fits/psFits.h
===================================================================
--- trunk/psLib/src/fits/psFits.h	(revision 25383)
+++ trunk/psLib/src/fits/psFits.h	(revision 30636)
@@ -50,5 +50,10 @@
     PS_FITS_SCALE_STDEV_NEGATIVE,       ///< Auto-scale to sample stdev, place mean at upper limit
     PS_FITS_SCALE_STDEV_BOTH,           ///< Auto-scale to sample stdev, place mean at middle
-    PS_FITS_SCALE_MANUAL                ///< Manual scaling (use specified BSCALE and BZERO)
+    PS_FITS_SCALE_MANUAL,                ///< Manual scaling (use specified BSCALE and BZERO)
+    PS_FITS_SCALE_LOG_RANGE,            ///< Take logarithm, Auto-scale to preserve dynamic range
+    PS_FITS_SCALE_LOG_STDEV_POSITIVE,   ///< Take logarithm, Auto-scale to sample stdev, place mean at lower limit
+    PS_FITS_SCALE_LOG_STDEV_NEGATIVE,   ///< Take logarithm, Auto-scale to sample stdev, place mean at upper limit
+    PS_FITS_SCALE_LOG_STDEV_BOTH,       ///< Take logarithm, Auto-scale to sample stdev, place mean at middle
+    PS_FITS_SCALE_LOG_MANUAL            ///< Manual scaling (use specified BSCALE, BZERO, and BOFFSET)
 } psFitsScaling;
 
@@ -66,4 +71,5 @@
     bool fuzz;                          ///< Fuzz the values when quantising floating-point values?
     double bscale, bzero;               ///< Manually specified BSCALE and BZERO (for SCALE_MANUAL)
+    double boffset;                     ///< Manually specified BOFFSET (for SCALE_MANUAL)
     double mean, stdev;                 ///< Mean and standard deviation of image
     int stdevBits;                      ///< Number of bits to sample a standard deviation (for SCALE_STDEV_*)