Index: trunk/ippTools/src/regtool.c
===================================================================
--- trunk/ippTools/src/regtool.c	(revision 13596)
+++ trunk/ippTools/src/regtool.c	(revision 13606)
@@ -892,4 +892,10 @@
     }
 
+    psF32 sat_pixel_frac = psMetadataLookupF32(&status, config->args, "-sat_pixel_frac");
+    if (!status) {
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -sat_pixel_frac");
+        return false;
+    }
+
     psF64 bg = psMetadataLookupF64(&status, config->args, "-bg");
     if (!status) {
@@ -977,4 +983,5 @@
         decl,
         exp_time,
+        sat_pixel_frac,
         bg,
         bg_stdev,
@@ -1046,4 +1053,10 @@
     }
 
+    psF32 sat_pixel_frac = psMetadataLookupF32(&status, config->args, "-sat_pixel_frac");
+    if (!status) {
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -sat_pixel_frac");
+        return false;
+    }
+
     psF64 bg = psMetadataLookupF64(&status, config->args, "-bg");
     if (!status) {
@@ -1126,4 +1139,5 @@
         decl,
         exp_time,
+        sat_pixel_frac,
         bg,
         bg_stdev,
Index: trunk/ippTools/src/regtoolConfig.c
===================================================================
--- trunk/ippTools/src/regtoolConfig.c	(revision 13596)
+++ trunk/ippTools/src/regtoolConfig.c	(revision 13606)
@@ -79,4 +79,6 @@
     psMetadataAddF32(addprocessedimfileArgs, PS_LIST_TAIL, "-exp_time",  0,
         "define exposure time", NAN);
+    psMetadataAddF32(addprocessedimfileArgs, PS_LIST_TAIL, "-sat_pixel_frac",  0,
+        "define fraction of saturated pixels", NAN);
     psMetadataAddF64(addprocessedimfileArgs, PS_LIST_TAIL, "-bg",  0,
         "define exposue background", NAN);
@@ -160,4 +162,6 @@
     psMetadataAddF32(addprocessedexpArgs, PS_LIST_TAIL, "-exp_time",  0,
         "define exposure time", NAN);
+    psMetadataAddF32(addprocessedexpArgs, PS_LIST_TAIL, "-sat_pixel_frac",  0,
+        "define fraction of saturated pixels", NAN);
     psMetadataAddF64(addprocessedexpArgs, PS_LIST_TAIL, "-bg",  0,
         "define exposue background", NAN);