Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 21099)
+++ trunk/ippTools/src/difftool.c	(revision 21188)
@@ -568,4 +568,5 @@
     PXOPT_COPY_S64(config->args, where,  "-diff_id", "diffSkyfile.diff_id", "==");
     PXOPT_COPY_STR(config->args, where, "-skycell_id", "diffInputSkyfile.skycell_id", "==");
+    PXOPT_COPY_S64(config->args, where,  "-diff_image_id", "diffSkyfile.diff_image_id", "==");
     PXOPT_COPY_STR(config->args, where, "-tess_id", "diffSkyfile.tess_id", "==");
     PXOPT_COPY_S16(config->args, where, "-code", "diffSkyfile.fault", "==");
Index: trunk/ippTools/src/difftoolConfig.c
===================================================================
--- trunk/ippTools/src/difftoolConfig.c	(revision 21099)
+++ trunk/ippTools/src/difftoolConfig.c	(revision 21188)
@@ -113,6 +113,7 @@
     // -diffskyfile
     psMetadata *diffskyfileArgs = psMetadataAlloc();
-    psMetadataAddS64(diffskyfileArgs, PS_LIST_TAIL, "-diff_id", 0,            "search by warp ID", 0);
-    psMetadataAddStr(diffskyfileArgs , PS_LIST_TAIL, "-skycell_id",  0,            "define skycell ID", NULL);
+    psMetadataAddS64(diffskyfileArgs, PS_LIST_TAIL, "-diff_id", 0,            "search by diff ID", 0);
+    psMetadataAddStr(diffskyfileArgs , PS_LIST_TAIL, "-skycell_id",  0,       "define skycell ID", NULL);
+    psMetadataAddS64(diffskyfileArgs, PS_LIST_TAIL, "-diff_image_id", 0,      "search by diff_image_id ID", 0);
     psMetadataAddStr(diffskyfileArgs, PS_LIST_TAIL, "-tess_id",  0,            "define tessellation ID", NULL);
     psMetadataAddS64(diffskyfileArgs, PS_LIST_TAIL, "-exp_id",  0,            "define exposure ID", 0);