Index: trunk/ppSub/src/ppSubArguments.c
===================================================================
--- trunk/ppSub/src/ppSubArguments.c	(revision 15817)
+++ trunk/ppSub/src/ppSubArguments.c	(revision 17368)
@@ -212,4 +212,6 @@
     psMetadataAddS32(arguments, PS_LIST_TAIL, "-opt-order", 0, "Maximum order for optimum kernel search", -1);
     psMetadataAddBool(arguments, PS_LIST_TAIL, "-dual", 0, "Dual convolution", false);
+    psMetadataAddBool(arguments, PS_LIST_TAIL, "-renorm", 0, "Renormalise weights?", false);
+    psMetadataAddS32(arguments, PS_LIST_TAIL, "-renorm-width", 0, "Renormalisation width", 0);
 
     if (argc == 1 || !psArgumentParse(arguments, &argc, argv) || argc != 4) {
@@ -291,4 +293,9 @@
                       psMetadataLookupBool(NULL, arguments, "-dual"));
 
+    if (psMetadataLookupBool(NULL, arguments, "-renorm") || psMetadataLookupBool(NULL, recipe, "RENORM")) {
+        psMetadataAddBool(config->arguments, PS_LIST_TAIL, "RENORM", 0, "Renormalise weights?", true);
+        VALUE_ARG_RECIPE_INT("-renorm-width", "RENORM.WIDTH", S32, 0);
+    }
+
     // Translate the kernel type
     psString type = psMetadataLookupStr(NULL, arguments, "-type"); // Name of kernel type