Index: trunk/ippTools/src/dettool.c
===================================================================
--- trunk/ippTools/src/dettool.c	(revision 9227)
+++ trunk/ippTools/src/dettool.c	(revision 9231)
@@ -2967,4 +2967,31 @@
         return false;
     }
+    psF64 bg = psMetadataLookupF64(&status, config->args, "-bg");
+    if (!status) {
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -bg");
+        return false;
+    }
+    if (isnan(bg)) {
+        psError(PS_ERR_UNKNOWN, true, "-bg is required");
+        return false;
+    }
+    psF64 bg_stdev = psMetadataLookupF64(&status, config->args, "-bg_stdev");
+    if (!status) {
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -bg_stdev");
+        return false;
+    }
+    if (isnan(bg_stdev)) {
+        psError(PS_ERR_UNKNOWN, true, "-bg_stdev is required");
+        return false;
+    }
+    psF64 bg_mean_stdev = psMetadataLookupF64(&status, config->args, "-bg_mean_stdev");
+    if (!status) {
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -bg_mean_stdev");
+        return false;
+    }
+    if (isnan(bg_mean_stdev)) {
+        psError(PS_ERR_UNKNOWN, true, "-bg_mean_stdev is required");
+        return false;
+    }
     // optional
     psString b1_uri = psMetadataLookupStr(&status, config->args, "-b1_uri");
@@ -2984,4 +3011,7 @@
         statImfile->class_id,
         uri,
+        bg,
+        bg_stdev,
+        bg_mean_stdev,
         b1_uri,
         b2_uri