Index: /trunk/ippconfig/recipes/ppMerge.config
===================================================================
--- /trunk/ippconfig/recipes/ppMerge.config	(revision 10494)
+++ /trunk/ippconfig/recipes/ppMerge.config	(revision 10495)
@@ -6,6 +6,6 @@
 REJ		F32	3.0		# Rejection threshold (sigma)
 ITER		S32	1		# Number of rejection iterations
-FRACHIGH	F32	0.3		# Fraction of high pixels to reject immediately
-FRACLOW		F32	0.1		# Fraction of low pixels to reject immediately
+FRACHIGH	F32	0.0		# Fraction of high pixels to reject immediately
+FRACLOW		F32	0.0		# Fraction of low pixels to reject immediately
 NKEEP		S32	5		# Minimum number of pixels in stack to keep
 FRINGE.NUM	S32	5000		# Number of fringe regions
@@ -19,5 +19,49 @@
 MASK.BAD	F32	-4.0		# Threshold for bad pixels (sigma)
 MASKVAL		S32	0xff		# Mask value for input data
-COMBINE		STR	MEAN		# Statistic to use for combination
+COMBINE		STR	CLIPPED		# Statistic to use for combination
 MEAN		STR	ROBUST_MEDIAN	# Statistic to use to measure the mean
 STDEV		STR	ROBUST_STDEV	# Statistic to use to measure the stdev
+
+
+# Bias combination --- don't want min/max rejection
+PPMERGE_BIAS	METADATA
+	REJ		F32	3.0		# Rejection threshold (sigma)
+	ITER		S32	2		# Number of rejection iterations
+	FRACHIGH	F32	0.0		# Fraction of high pixels to reject immediately
+	FRACLOW		F32	0.0		# Fraction of low pixels to reject immediately
+	WEIGHTS		BOOL	FALSE		# Use image weights?
+	COMBINE		STR	CLIPPED		# Statistic to use for combination: 
+END
+
+
+# Dark combination --- don't want min/max rejection
+# More aggressive clipping than bias, so as to remove CRs
+PPMERGE_DARK	METADATA
+	REJ		F32	2.0		# Rejection threshold (sigma)
+	ITER		S32	4		# Number of rejection iterations
+	FRACHIGH	F32	0.0		# Fraction of high pixels to reject immediately
+	FRACLOW		F32	0.0		# Fraction of low pixels to reject immediately
+	WEIGHTS		BOOL	FALSE		# Use image weights?
+	COMBINE		STR	CLIPPED		# Statistic to use for combination: 
+END
+
+# Flat combination --- use min/max rejection
+PPMERGE_FLAT	METADATA
+	REJ		F32	3.0		# Rejection threshold (sigma)
+	ITER		S32	1		# Number of rejection iterations
+	FRACHIGH	F32	0.3		# Fraction of high pixels to reject immediately
+	FRACLOW		F32	0.1		# Fraction of low pixels to reject immediately
+	NKEEP		S32	5		# Minimum number of pixels in stack to keep
+	MASKVAL		S32	0xff		# Mask value for input data
+	WEIGHTS		BOOL	TRUE		# Use image weights?
+	COMBINE		STR	MEAN		# Statistic to use for combination: 
+END
+
+
+# Fringe combination --- already included in default, above
+PPMERGE_FRINGE	METADATA
+END
+
+# Mask generation --- already included in default, above
+PPMERGE_MASK	METADATA
+END