diff --git a/Fonderie/interpolator.c b/Fonderie/interpolator.c
index 838d842..0cd98cf 100644
--- a/Fonderie/interpolator.c
+++ b/Fonderie/interpolator.c
@@ -147,10 +147,12 @@ if (FIMG_TYPE_RGB != iarray[2]) {
 	exit(1);	/* BLAM! */
 	}
 
+#if 0
 if (infx)		fprintf(stderr, "\tin  fx  #%d\n", infx);
 else			fprintf(stderr, "\tno in fx\n");
 if (outfx)		fprintf(stderr, "\tout fx  #%d\n", outfx);
 else			fprintf(stderr, "\tno out fx\n");
+#endif
 
 w = iarray[0], h = iarray[1];
 fprintf(stderr, "first image size : %dx%d\n", w, h);
@@ -178,14 +180,8 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 		}
 	value = idx_values[idx].value;
 
-	/* here, insert the input filter */
-	if (infx) {
-		foo = crapulator(&B, infx, value);
-		}
-	else	{
-		foo = filterstack_run(0, &B, 0);
-		}
-
+	/* here was the input filter */
+	foo = filterstack_run(0, &B, 0);
 	if (foo) {
 		fprintf(stderr, "%s: input fx fail %d\n", __func__, foo);
 		exit(1);
@@ -195,14 +191,6 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 		coef = (float)step / (float)Nsteps;
 		fimg_interpolate(pSecond, pFirst, &Out, coef);
 
-		/* here we can insert the OUTPUT filter */
-		// foo = crapulator(&Out, outfx, value);
-		//if (foo) {
-		//	fprintf(stderr, "\n%s: out fx %d failure %d\n",
-		//				__func__, outfx, foo);
-		//	exit(1);
-		//	}
-
 		foo = filterstack_run(1, &Out, 0);
 		if (foo) {
 			fprintf(stderr, "run filt stack--> %d\n", foo);
@@ -245,12 +233,17 @@ puts("usage:\n\tinterpolator [options] <inglob> <outdir> <nbsteep>");
  *	the options of 'fonderie' software ?
  */
 puts("options:");
-puts("\t-S nn\tmysterious sort");
-puts("\t-F i:j\tfilter chain");
-puts("\t-L\tlist available filters");
-puts("\t-w nn\tinput effect");
-puts("\t-x nn\toutput effect");
-puts("\t-v\tincrease verbosity");
+puts("\t-S nn\t\tmysterious sort");
+puts("\t-E i:bla:k\tinput  filter chain");
+puts("\t-F name:j\toutput filter chain");
+puts("\t-L\t\tlist available filters");
+puts("\t-w nn\t\tinput effect");
+puts("\t-x nn\t\toutput effect");
+puts("\t-v\t\tincrease verbosity");
+
+if (verbosity) {
+	list_crapulors("available filters");
+	}
 
 exit(0);
 }
@@ -291,9 +284,9 @@ while ((opt = getopt(argc, argv, "E:F:hLS:vw:x:")) != -1) {
 		}
 	}
 
-//#if DEBUG_LEVEL
+#if DEBUG_LEVEL
 fprintf(stderr, "%s: argc = %d, optind = %d\n", argv[0], argc, optind);
-//#endif
+#endif
 
 if (3 != (argc-optind)) {
 	fprintf(stderr, "args: [options] <inglob> <outdir> <nbsteep>\n");