Index: trunk/psphot/src/psphotArguments.c
===================================================================
--- trunk/psphot/src/psphotArguments.c	(revision 6379)
+++ trunk/psphot/src/psphotArguments.c	(revision 6481)
@@ -42,4 +42,18 @@
 	psArgumentRemove (N, argc, argv);
 	psMetadataAddStr (config->arguments, PS_LIST_TAIL, "RESID_IMAGE", PS_META_REPLACE, "", argv[N]);
+	psArgumentRemove (N, argc, argv);
+    }
+
+    // background image (output) is used by psphotOutput
+    if ((N = psArgumentGet (*argc, argv, "-background"))) {
+	psArgumentRemove (N, argc, argv);
+	psMetadataAddStr (config->arguments, PS_LIST_TAIL, "BACKGROUND_IMAGE", PS_META_REPLACE, "", argv[N]);
+	psArgumentRemove (N, argc, argv);
+    }
+
+    // background model (output) is used by psphotOutput
+    if ((N = psArgumentGet (*argc, argv, "-backmodel"))) {
+	psArgumentRemove (N, argc, argv);
+	psMetadataAddStr (config->arguments, PS_LIST_TAIL, "BACKGROUND_MODEL", PS_META_REPLACE, "", argv[N]);
 	psArgumentRemove (N, argc, argv);
     }
@@ -89,4 +103,11 @@
 	psArgumentRemove (N, argc, argv);
 	psMetadataAddStr (config->options, PS_LIST_TAIL, "PSF_INPUT_FILE", PS_META_REPLACE, "", argv[N]);
+	psArgumentRemove (N, argc, argv);
+    }
+
+    // PSF : optional psf file to be loaded
+    if ((N = psArgumentGet (*argc, argv, "-psfout"))) {
+	psArgumentRemove (N, argc, argv);
+	psMetadataAddStr (config->options, PS_LIST_TAIL, "PSF_OUTPUT_FILE", PS_META_REPLACE, "", argv[N]);
 	psArgumentRemove (N, argc, argv);
     }