Index: trunk/psModules/src/imcombine/pmStack.h
===================================================================
--- trunk/psModules/src/imcombine/pmStack.h	(revision 36710)
+++ trunk/psModules/src/imcombine/pmStack.h	(revision 41892)
@@ -47,4 +47,14 @@
 				);
 
+bool pmStackCombineByPercentile(
+    pmReadout *combined,
+    psArray *input,
+    psF64 minRange,
+    psF64 maxRange,
+    psImageMaskType badMaskBits, 	// treat these bits as 'bad'
+    psImageMaskType suspectMaskBits,	// treat these bits as 'suspect'
+    psImageMaskType blankMaskBits       // use this mask value for pixels missing input data (distinguish between Ninput = 0 and Ngood = 0?)
+  );
+
 /// Stack input images
 bool pmStackCombine(pmReadout *combined,///< Combined readout (output)