diff --git a/.gitignore b/.gitignore
index 8ba49abc..a95a764e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,6 +24,7 @@ doc/*.idx
 doc/*.ilg
 doc/*.ind
 doc/co*.tex
+
 funcs/t
 funcs/*.o
 funcs/*.png
@@ -61,4 +62,6 @@ tools/fimgfx
 tools/*.png
 tools/*.tiff
 
+Fonderie/*.o
+Fonderie/fonderie
 
diff --git a/Fonderie/Makefile b/Fonderie/Makefile
new file mode 100644
index 00000000..155459ac
--- /dev/null
+++ b/Fonderie/Makefile
@@ -0,0 +1,28 @@
+
+
+COPT = -g -no-pie -Wall -O3 -DDEBUG_LEVEL=0 -Werror=parentheses
+LIBS = -lfloatimg -lpnglite -lm 
+OBJS = fonctions.o sfx.o crapulator.o
+DEPS = fonctions.h crapulator.h
+
+fonderie:	fonderie.c fonctions.h ${OBJS} Makefile
+	gcc ${COPT} $< ${OBJS} ${LIBS} -o $@
+
+crapulator.o:	crapulator.c ${DEPS}
+	gcc ${COPT} -c $<
+
+fonctions.o:	fonctions.c fonctions.h Makefile
+	gcc ${COPT} -c $<
+
+sfx.o:	sfx.c fonctions.h Makefile
+	gcc ${COPT} -c $<
+
+# ---------------------------------------------------------
+
+TOTAR = *.c *.h Makefile			\
+	*.sh
+
+
+
+# ---------------------------------------------------------
+
diff --git a/Fonderie/README.md b/Fonderie/README.md
new file mode 100644
index 00000000..ca7e8c12
--- /dev/null
+++ b/Fonderie/README.md
@@ -0,0 +1,22 @@
+# Fonderie
+
+Avec toutes ces fonctions disponibles et `grabvidseq`, nous
+savons faire des images **floues***. L'étape suivante, les plus
+pervers d'entre vous le savent déja, est celle de la création
+de **films flous**. 
+
+## fonderie
+
+Le programme principal, utilisé à partir de la ligne de commande
+avec une foule d'options aux mnémoniques abscons.
+
+Rassurez-vous, en général ils sont wrappables dans des scripts
+shell. Il est même possible un jour qu'ils puissent lire des 
+paramètres dans `$(env)`.
+
+
+## crapulator
+
+C'est dans ce module qu'est codé le moteur de filtrage, utilisé
+aussi bien en entrée qu'en sortie.
+
diff --git a/Fonderie/crapulator.c b/Fonderie/crapulator.c
new file mode 100644
index 00000000..dc5acfdb
--- /dev/null
+++ b/Fonderie/crapulator.c
@@ -0,0 +1,122 @@
+/*
+ *		crapulator.c
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+
+#include  <floatimg.h>
+
+#include  "fonctions.h"
+#include  "crapulator.h"
+
+/* -------------------------------------------------------------- */
+
+int crapulator(FloatImg *image, int idFx, float fval)
+{
+int			retval, foo;
+FloatImg		imgtmp;
+static int		count = 0;
+int			flag_debug = 0;
+float			value;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d %f )\n", __func__,
+				image, idFx, fval);
+#endif
+
+if (666==count) {
+	flag_debug = 1;
+	fprintf(stderr, "DEBUG PT 1 in %s:%d\n", __func__, __LINE__);
+	fimg_save_as_png(image, "source.png", 0);
+	}
+
+switch (idFx) {
+	case 0:		/* DO NOTHING */
+		retval = 0;			break;
+
+	case 1:
+		fimg_cos_01(image, image,
+				fimg_get_maxvalue(image));
+		break;
+	case 2:
+		fimg_cos_010(image, image,
+				fimg_get_maxvalue(image));
+		break;
+	case 3:
+		value = fimg_get_maxvalue(image);
+		fimg_mul_cste(image, -1.0);
+		fimg_add_cste(image, value);
+		foo = fimg_count_negativ(image);
+		if (foo) {
+			fimg_dump_to_file(image, "err.fimg", 0);
+			fprintf(stderr, "%s negativ %d\n",
+						__func__, foo);
+			return -78;
+			}
+		break;
+	case 4:
+		brotche_rand48_a(image, 0.20,
+				fimg_get_maxvalue(image));
+		break;
+	case 5:
+		brotche_rand48_b(image, 0.10,
+				fimg_get_maxvalue(image)*0.8);
+		break;
+	case 6:
+		fimg_killcolors_a(image, 0.0);
+		break;
+
+	case 7:
+		retval = fimg_colors_mixer_a(image, 2.0);
+		break;
+
+	case 8:
+		fimg_clone(image, &imgtmp, 0);
+		fimg_clear(&imgtmp);
+		if (flag_debug) {
+			fprintf(stderr, "DEBUG A contour 2x2\n");
+			fimg_save_as_png(image, "before.png", 0);
+			fimg_dump_to_file(image, "before.fimg", 0);
+			}
+		retval = fimg_contour_2x2(image, &imgtmp, 0);
+		if (retval) {
+			fprintf(stderr, "%s : err contour %d\n",
+					__func__, retval);
+			exit(1);
+			}
+		if (flag_debug) {
+			fprintf(stderr, "DEBUG B contour 2x2\n");
+			// fimg_save_as_png(&imgtmp, "contour.png", 0);
+			fimg_dump_to_file(&imgtmp, "contour.fimg", 0);
+			}
+		fimg_copy_data(&imgtmp, image);
+		fimg_destroy(&imgtmp);
+		break;
+
+	case 9:
+		retval = fimg_classif_trial(image, image, 0.37, 0);
+		if (retval) {
+			fprintf(stderr, "err %d in classif\n", retval);
+			exit(1);
+			}
+		break;
+
+	default :
+		fprintf(stderr, "%s : effect #%d invalid\n", 
+				__func__, idFx);
+		return -77;
+	}
+
+if (flag_debug) {
+	fprintf(stderr, "DEBUG PT 2 in %s:%d\n", __func__, __LINE__);
+	fimg_save_as_png(image, "after.png", 0);
+	}
+
+count++;	flag_debug = 0;
+
+return retval;
+}
+
+/* -------------------------------------------------------------- */
+
diff --git a/Fonderie/crapulator.h b/Fonderie/crapulator.h
new file mode 100644
index 00000000..58d15e99
--- /dev/null
+++ b/Fonderie/crapulator.h
@@ -0,0 +1,6 @@
+/*
+ *		crapulator.h
+ */
+
+int crapulator(FloatImg *image, int id_effect, float fparam);
+
diff --git a/Fonderie/fonctions.c b/Fonderie/fonctions.c
new file mode 100644
index 00000000..5544e2ec
--- /dev/null
+++ b/Fonderie/fonctions.c
@@ -0,0 +1,156 @@
+/*
+ *	Fonctions de la Fonderie du Cumul
+ *	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *	Du code bien cracra / tTh / Tetalab
+ */
+#include  <stdio.h>
+#include  <string.h>
+#include  <stdlib.h>
+#include  <malloc.h>
+
+#include  <floatimg.h>
+
+#include  "fonctions.h"
+#include  "crapulator.h"
+
+/* -------------------------------------------------------------- */
+/*	global vars from main
+ */
+extern	int		verbosity;
+
+/*	private vars of this module - it was very dirty
+ */
+static	A_Fifo		g_fifo;
+
+/* -------------------------------------------------------------- */
+
+int faire_la_somme(A_Fifo *pfifo, FloatImg *destination, int step)
+{
+int		idx, foo;
+FloatImg	*pdest;
+
+if (NULL==destination) {
+	pdest = &(pfifo->total);		}
+else	{
+	pdest = destination;			}
+
+fimg_clear(pdest);
+for (idx=0; idx<pfifo->nbslots; idx += step) {
+	foo = fimg_add_2(&(pfifo->slots[idx]), pdest);
+	if (foo)
+		{
+		fprintf(stderr, "%s: err %d on add_2\n", __func__, foo);
+		abort();
+		}
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+/* -------------------------------------------------------------- */
+/*
+ *	this func save the fifo content as
+ *	  - float     FIMG
+ *	  - 16 bits   PNM
+ *	  - 8 bits    PNG
+ */
+int export_fifo(char *fname, int postproc, int step)
+{
+int		foo, type;
+
+foo = faire_la_somme(&g_fifo, NULL, step);
+
+/* BEGIN GRUIK CODE */
+extern int	convert_to_gray;
+/* END OF THE KLUGE */
+if (convert_to_gray) {
+	fimg_to_gray(&g_fifo.total);
+	// fprintf(stderr, "%p gray-washed\n", &fifo.total);
+	}
+
+foo = crapulator(&g_fifo.total, postproc, 0.0);
+if (foo) {
+	fprintf(stderr, "%s: ERR post process picture -> %d\n",
+				__func__, foo);
+	return foo;
+	}
+
+type = format_from_extension(fname);
+switch (type) {
+	case FILE_TYPE_PNG:
+		foo = fimg_save_as_png(&g_fifo.total, fname, 0);
+		break;
+	case FILE_TYPE_PNM:
+		foo = fimg_save_as_pnm(&g_fifo.total, fname, 0);
+		break;
+	case FILE_TYPE_FIMG:
+		foo = fimg_dump_to_file(&g_fifo.total, fname, 0);
+		break;
+	default:
+		fprintf(stderr, "%s : type of '%s' unknow\n",
+				__func__, 	fname);
+		foo = 888;
+		break;
+	}
+
+if (foo) {
+	fprintf(stderr, "ERR EXPORT '%s' is %d\n", fname, foo);
+	exit(3);
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int insert_picture(FloatImg *src)
+{
+FloatImg	*dst;
+int		nbre;
+
+/*
+ * this is the where we can insert the 'input filter'
+ */
+
+dst = &g_fifo.slots[g_fifo.next];
+
+nbre = dst->width * dst->height * dst->type;
+memcpy(dst->R, src->R, nbre*sizeof(float));
+
+g_fifo.next++,  g_fifo.next %= g_fifo.nbslots;
+// maybe we can write :
+//	(++fifo.next) %= fifo.nbslots;
+
+if (verbosity > 2) fprintf(stderr, "%s : next slot %d\n",
+				__func__, g_fifo.next);
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int create_fifo(int nbslot, int w, int h, int t)
+{
+int		foo, idx;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d  %dx%d  %d )\n", __func__,
+			nbslot, w, h, t);
+#endif
+
+memset(&g_fifo, 0, sizeof(A_Fifo));
+
+g_fifo.nbslots = nbslot;
+
+g_fifo.slots = calloc(nbslot, sizeof(FloatImg));
+if (NULL==g_fifo.slots)	abort();
+for (idx=0; idx<nbslot; idx++) {
+	foo = fimg_create(&g_fifo.slots[idx], w, h, t);
+	if (foo) {
+		fprintf(stderr, "%s idx %d err%d\n", __func__, idx, foo);
+		return foo;
+		}
+	}
+foo = fimg_create(&g_fifo.total, w, h, t);
+g_fifo.next = 0;
+g_fifo.magic = MAGIC_FIFO;
+
+return 0;
+}
+/* -------------------------------------------------------------- */
diff --git a/Fonderie/fonctions.h b/Fonderie/fonctions.h
new file mode 100644
index 00000000..eb304f59
--- /dev/null
+++ b/Fonderie/fonctions.h
@@ -0,0 +1,48 @@
+/*
+ *		Machine qui fait des fils flous
+ */
+/* -------------------------------------------------------------- */
+
+typedef struct {
+	unsigned long	magic;
+	int		nbslots;	/* how many pics used ? */
+	FloatImg	total;		/* computing workspace */
+	FloatImg	wspace;		/* computing workspace */
+	FloatImg	*slots;		/* circular buffer */
+	int		next;		/* incremented with modulo */
+	} A_Fifo;
+
+#define MAGIC_FIFO	0xabcd9876
+
+typedef struct {
+	unsigned long	magic;
+
+	int		blanks;		/* ???? */
+	float		fk;
+	int		preproc, postproc;
+
+	int		step;		/* for fifo export */
+
+	} ControlBloc;
+
+#define MAGIC_CTRLB	0xabcdfefe
+
+/* -------------------------------------------------------------- */
+
+int export_fifo(char *fname, int postproc, int step);
+
+int insert_picture(FloatImg *src);
+
+int create_fifo(int nbslot, int w, int h, int t);
+
+/* -------------------------------------------------------------- */
+/*
+ *		funcs in 'sfx.c'
+ */
+
+int brotche_rand48_a(FloatImg *fimg, float ratio, float mval);
+int brotche_rand48_b(FloatImg *fimg, float ratio, float mval);
+int colors_brotcher(FloatImg *fimg, float fval);
+
+/* -------------------------------------------------------------- */
+
diff --git a/Fonderie/fonderie.c b/Fonderie/fonderie.c
new file mode 100644
index 00000000..fa8e3033
--- /dev/null
+++ b/Fonderie/fonderie.c
@@ -0,0 +1,211 @@
+/*
+ *		FONDERIE
+ */
+
+#include  <stdio.h>
+#include  <string.h>
+#include  <stdlib.h>
+#include  <unistd.h>
+#include  <glob.h>
+#include  <floatimg.h>
+
+#include  "fonctions.h"
+#include  "crapulator.h"
+
+int			verbosity;
+int			convert_to_gray;
+
+/* -------------------------------------------------------------- */
+int traite_une_image(FloatImg *image, int proc, int step)
+{
+static int		numero;
+int			foo;
+char			ligne[200];
+
+/* here, we put the picz in the fifo machinery */
+foo = insert_picture(image);
+if (foo) {
+	fprintf(stderr, "%s: err %d on insert\n", __func__, foo);
+	return foo;
+	}
+
+sprintf(ligne, "p8/%05d.png", numero);
+/*              ^^^
+	XXX hardcoded value ? wtf ?
+	*/
+
+foo = export_fifo(ligne, proc, step);
+if (foo) {
+	fprintf(stderr, "%s: err %d on export\n", __func__, foo);
+	return foo;
+	}
+numero++;			/* VERY IMPORTANT :) */
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int insert_blank(FloatImg *image, int nbre, int pproc)
+{
+int		idx, foo;
+
+fimg_clear(image);
+
+for (idx=0; idx<nbre; idx++) {
+
+	fimg_hdeg_a(image, 16.64);
+	brotche_rand48_b(image, drand48()*0.10, 1e5);
+
+	if ((foo=traite_une_image(image, pproc, 1))) {
+		fprintf(stderr, "%s : err %d from 'traite_une_image'\n",
+				__func__, foo);
+		break;
+		}
+	printf("\t%c\r", "ABCDEF"[idx%6]);  fflush(stdout);
+	}
+
+puts("");
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+#define BLANK	40
+
+int demarre_la_machine(char *pattern, char *outdir, int szfifo,
+				int infx, int outfx, int step)
+{
+int			foo, idx;
+glob_t			globbuf;
+char			*cptr;
+FloatImg		input;
+double			fin;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' -> '%s'  %d )\n", __func__,
+			pattern, outdir, szfifo);
+#endif
+
+fprintf(stderr, "\tstep is %d\n", step);
+
+(void)fimg_timer_set(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");
+
+foo = create_fifo(szfifo, 640, 480, FIMG_TYPE_RGB);
+fprintf(stderr, "init fifo (%d slots) --> %d\n", szfifo, foo);
+
+fimg_create(&input, 640, 480, 3);
+
+/* XXX inject a few stange pics in the fifo */
+insert_blank(&input, BLANK, outfx);
+
+memset(&globbuf, 0, sizeof(glob_t));
+foo = glob(pattern, 0, NULL, &globbuf);
+fprintf(stderr, "glob '%s' -> %d, %ld files found\n", pattern, foo,
+						globbuf.gl_pathc);
+
+for (idx=0; idx<globbuf.gl_pathc; idx++) {
+
+	cptr = globbuf.gl_pathv[idx];
+
+	/* first step : read the current grabed picz from disk,
+	   and put it in our private buffer */
+	foo = fimg_load_from_dump(cptr, &input);
+	if (foo) {
+		fprintf(stderr, "load #%d from dump -> %d\n", idx, foo);
+		continue;
+		}
+
+	/*		=========================		*/
+	/*		FSCKING INPUT FILTER HERE 		*/
+	foo = crapulator(&input, infx, 0.42);
+	if (foo) {
+		fprintf(stderr, "%s crapulator -> %d\n", __func__, foo);
+		exit(1);
+		}
+
+	foo = traite_une_image(&input, outfx, step);
+	if (foo) {
+		fprintf(stderr, "traitement %s -> %d WTF?\n", cptr, foo);
+		break;
+		}
+	fprintf(stderr, "\t%5d\r", idx);
+	}
+
+fputs("\n", stderr);
+
+insert_blank(&input, BLANK, outfx);
+
+fin = fimg_timer_get(0);
+if (idx) {
+	fprintf(stderr, "\nelapsed %.2f seconds, %.2f s/pic\n", fin, fin/idx);
+	}
+else	{
+	fprintf(stderr, "\nelapsed %.2f seconds\n", fin);
+	}
+
+return 8;
+}
+/* -------------------------------------------------------------- */
+void help(void)
+{
+puts("\tFONDERIE\noptions:");
+
+puts("\t-g\tconvert to gray");
+puts("\t-I\tinput glob pattern");
+puts("\t-O\toutput directory");
+puts("\t-T\tfifo size");
+puts("\t-v\tincrease verbosity");
+puts("\t-w\tinput effect");
+puts("\t-x\toutput effect");
+
+exit(0);
+}
+/* -------------------------------------------------------------- */
+int main (int argc, char *argv[])
+{
+int		foo, opt;
+int		fifosize = 10;
+char		*in_pattern = "capture/?????.fimg";
+char		*out_dir = "p8";
+int		in_effect = 0;
+int		out_effect = 0;
+int		steps = 1;
+
+fprintf(stderr, "*** %s :\n\tcompiled by tTh, %s %s\n\tpid %d\n",
+			argv[0], __DATE__, __TIME__, getpid());
+fimg_print_version(2);
+
+while ((opt = getopt(argc, argv, "ghI:O:s:T:vx:")) != -1) {
+	switch(opt) {
+
+		case 'g':	convert_to_gray = 1;
+				break;
+		case 'h':	help();	
+				break;
+		case 'I':	in_pattern = optarg;
+				break;
+		case 'O':	out_dir = optarg;
+				break;
+		case 'T':	fifosize = atoi(optarg);
+				break;
+		case 'v':	verbosity++;
+				break;
+		case 'w':	in_effect = atoi(optarg);
+				break;
+		case 'x':	out_effect = atoi(optarg);
+				break;
+		case 's':	steps = atoi(optarg);
+				break;
+		}
+	}
+
+foo = demarre_la_machine(in_pattern, out_dir, fifosize, in_effect,
+					out_effect, steps);
+fprintf(stderr, "retour du big-run de la machine -> %d\n", foo);
+
+return 0;
+}
+/* -------------------------------------------------------------- */
diff --git a/Fonderie/sfx.c b/Fonderie/sfx.c
new file mode 100644
index 00000000..e56841f5
--- /dev/null
+++ b/Fonderie/sfx.c
@@ -0,0 +1,76 @@
+/*
+ *		SPECIAL EFFECTS
+ *
+ *	Du code bien cracra / tTh / Tetalab
+ */
+#include  <stdio.h>
+#include  <string.h>
+#include  <stdlib.h>
+#include  <malloc.h>
+
+#include  <floatimg.h>
+
+#include  "fonctions.h"
+
+/* -------------------------------------------------------------- */
+/*	global vars from main
+ */
+extern	int		verbosity;
+
+/* -------------------------------------------------------------- */
+
+/* -------------------------------------------------------------- */
+int brotche_rand48_a(FloatImg *fimg, float ratio, float mval) 
+{
+int		nbpix, todo, foo;
+int		x, y;
+float		fval;
+
+nbpix = fimg->width * fimg->height;
+todo = (int)((float)nbpix  * ratio);
+if (verbosity > 1) {
+	fprintf(stderr, "%s: ratio %f nbpix %d todo %d\n", __func__,
+				ratio, nbpix, todo);
+	}
+
+for (foo=0; foo<todo; foo++)
+	{
+	fval = (float)drand48() * mval;
+	x = rand() % fimg->width;
+	y = rand() % fimg->height;
+	fimg_plot_rgb(fimg, x, y, fval, fval, fval);
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int brotche_rand48_b(FloatImg *fimg, float ratio, float mval) 
+{
+int		nbpix, todo, foo;
+int		x, y;
+float		fval;
+
+nbpix = fimg->width * fimg->height;
+todo = (int)((float)nbpix  * ratio);
+if (verbosity > 1) {
+	fprintf(stderr, "%s: ratio %f nbpix %d todo %d\n", __func__,
+					ratio, nbpix, todo);
+	}
+
+for (foo=0; foo<todo; foo++)
+	{
+	fval = (float)drand48() * mval;
+	x = 1 + (rand() % (fimg->width-2));
+	y = rand() % fimg->height;
+	fimg_plot_rgb(fimg, x-1, y, fval, 0.0, 0.0);
+	fimg_plot_rgb(fimg, x  , y, 0.0, 0.0, fval);
+	fimg_plot_rgb(fimg, x+1, y, 0.0, fval, 0.0);
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+
+
+
+
diff --git a/README.md b/README.md
index f8232f40..816880c4 100644
--- a/README.md
+++ b/README.md
@@ -19,8 +19,8 @@ le canal IRC #tetalab sur le réseau de
 Par ailleurs, d'autres expérimentations sont
 [en cours](http://la.buvette.org/photos/cumul/fonderie/vidz.html#interpolator)
 sur le traitement et l'assemblage de ces images floues dans le but de faire
-des films flous. Je sais aussi qu'un autre _diehard coder_ travaille sur la
-parallélisation de certaines opérations.
+des films flous. 
+
+Un logiciel à base de [moyenne mobile](fonderie/) est en bonne voie.
+
 *En avant vers l'infini, et au-delà...*
-
-
diff --git a/floatimg.h b/floatimg.h
index f3d402db..3f542a9f 100644
--- a/floatimg.h
+++ b/floatimg.h
@@ -3,7 +3,7 @@
  *			ugly code from tTh
  */
 
-#define		FIMG_VERSION	109
+#define		FIMG_VERSION	112
 
 /*
  *	in memory descriptor
@@ -98,7 +98,7 @@ int fimg_lissage_2x2(FloatImg *img);
 int fimg_filter_3x3(FloatImg *s, FloatImg *d, FimgFilter3x3 *filtr);
 
 
-int fimg_contour_2x2(FloatImg *psrc, FloatImg *pdst, int notused);
+int fimg_contour_2x2(FloatImg *psrc, FloatImg *pdst, int reverse);
 
 /*	'sfx0' module 			*/
 int fimg_killcolors_a(FloatImg *fimg, float fval);
@@ -109,6 +109,10 @@ int fimg_colors_mixer_a(FloatImg *fimg, float fval);
 /*	#coronamaison			*/
 int fimg_rotate_90(FloatImg *src, FloatImg *dst, int notused);
 
+
+/* universal exporter XXX */
+int fimg_export_picture(FloatImg *pic, char *fname, int flags);
+
 /*	PNM files module		*/
 int fimg_save_as_pnm(FloatImg *head, char *fname, int flags);
 int fimg_load_from_pnm(char *fname, FloatImg *head, int notused);
@@ -141,6 +145,8 @@ int fimg_desaturate(FloatImg *src, FloatImg *dst, int k);
 /*	module funcs/geometry.c		*/
 int fimg_halfsize_0(FloatImg *src, FloatImg *dst, int notused);
 
+int fimg_displacement_0(FloatImg *psrc, FloatImg *pdst, int flags);
+
 /*	module funcs/rampes.c		*/
 int fimg_hdeg_a(FloatImg *img, double dcoef);
 int fimg_vdeg_a(FloatImg *img, double dcoef);
@@ -178,6 +184,8 @@ int   fimg_save_as_png(FloatImg *src, char *outname, int flags);
 int   fimg_test_pattern(FloatImg *fimg, int type, double dval);
 int   fimg_draw_something(FloatImg *fimg);
 
+/*	file is 'funcs/utils.c'		*/
+void fimg_print_minmax(float minmax[6], char *titre);
 int parse_WxH(char *str, int *pw, int *ph);
 int parse_double(char *str, double *dptr);
 int format_from_extension(char *fname);
diff --git a/funcs/Makefile b/funcs/Makefile
index 971c09e3..4e398651 100644
--- a/funcs/Makefile
+++ b/funcs/Makefile
@@ -5,7 +5,8 @@ DEPS = ../floatimg.h Makefile
 OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o	\
 	fimg-libpnm.o rampes.o sfx0.o geometry.o rotate.o	\
 	equalize.o fimg-fits.o saturation.o histogram.o		\
-	hsv.o classif.o contour2x2.o qsortrgb.o
+	hsv.o classif.o contour2x2.o qsortrgb.o exporter.o	\
+	displacement.o dithering.o
 
 #---------------------------------------------------------------
 
@@ -19,6 +20,9 @@ t:	t.c $(DEPS) ../libfloatimg.a
 ../libfloatimg.a:       $(OBJS)
 	$(AR) r $@ $?
 
+displacement.o:	displacement.c
+	gcc $(COPT) -c $<
+
 fimg-png.o:		fimg-png.c $(DEPS)
 	gcc $(COPT) -c $<
 
@@ -52,6 +56,10 @@ histogram.o:		histogram.c $(DEPS)
 equalize.o:		equalize.c $(DEPS)
 	gcc $(COPT) -c $<
 
+dithering.o:		dithering.c $(DEPS)
+	gcc $(COPT) -c $<
+
+
 sfx0.o:			sfx0.c $(DEPS)
 	gcc $(COPT) -c $<
 
@@ -67,6 +75,9 @@ classif.o:		classif.c $(DEPS)
 qsortrgb.o:		qsortrgb.c $(DEPS)
 	gcc $(COPT) -c $<
 
+exporter.o:		exporter.c $(DEPS)
+	gcc $(COPT) -c $<
+
 
 hsv.o:		hsv.c $(DEPS)
 	gcc $(COPT) -c $<
diff --git a/funcs/README.md b/funcs/README.md
new file mode 100644
index 00000000..65b2f6eb
--- /dev/null
+++ b/funcs/README.md
@@ -0,0 +1,20 @@
+# Fonctions
+
+Plein de fonctions qu'il serait bon de documenter :)
+
+## Contours
+
+Détecter des contours est une activité respectable.
+
+## Exporter
+
+Une méta-fonction qui va sauvegarder (dans la mesure de ses conséquences)
+une image en fonction de l'extension du nom de fichier.
+
+## Sfx
+
+Effets spéciaux divers.
+
+## Dithering
+
+Work in progress...
diff --git a/funcs/classif.c b/funcs/classif.c
index eb6dc373..29860f33 100644
--- a/funcs/classif.c
+++ b/funcs/classif.c
@@ -9,7 +9,7 @@
 
 #include "../floatimg.h"
 
-int		verbosity;
+extern int		verbosity;
 
 /* --------------------------------------------------------------------- */
 /* nouveau 2 octobre 2020, juste avant sonoptic de la pluie craignos	 */
@@ -21,9 +21,19 @@ float		range, dist, rgb[3], dr, dg, db;
 int		x, y, on, off;
 
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( %p %p %f %d )\n", __func__, psrc, pdst, fval, notused);
+fprintf(stderr, ">>> %s ( %p %p %f %d )\n", __func__,
+					psrc, pdst, fval, notused);
 #endif
 
+if (FIMG_TYPE_RGB != psrc->type) {
+	fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
+	return -7;
+	}
+if (fimg_images_not_compatible(psrc, pdst)) {
+	fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
+	return -8;
+	}
+
 /* calculer les amplitudes RGB de l'image source */
 fimg_get_minmax_rgb(psrc, minmax);
 delta[0] = minmax[1] - minmax[0];
@@ -37,7 +47,7 @@ range = delta[0]; 	if (delta[1]<range) range=delta[1];
 /* convertir le diametre en rayon (magic inside) */
 range *= fval;
 
-if (verbosity ) fprintf(stderr, "deltas : %f  %f  %f  /  %f\n",
+if (verbosity > 1) fprintf(stderr, "deltas : %f  %f  %f  /  %f\n",
 					delta[0], delta[1], delta[2], range);
 
 
@@ -45,7 +55,7 @@ if (verbosity ) fprintf(stderr, "deltas : %f  %f  %f  /  %f\n",
 baryc[0] = (minmax[1] + minmax[0]) / 2;
 baryc[1] = (minmax[3] + minmax[2]) / 2;
 baryc[2] = (minmax[5] + minmax[4]) / 2;
-if (verbosity) fprintf(stderr, "barycs : %f  %f  %f\n",
+if (verbosity > 1) fprintf(stderr, "barycs : %f  %f  %f\n",
 					baryc[0], baryc[1], baryc[2]);
 
 on = off = 0;
@@ -83,7 +93,7 @@ for (y=0; y<psrc->height; y++) {
 		}
 	}
 
-fprintf(stderr, "on %d off %d\n", on, off);
+if (verbosity > 1)	fprintf(stderr, "on %d off %d\n", on, off);
 
 return 0;
 }
diff --git a/funcs/contour2x2.c b/funcs/contour2x2.c
index f33eea5e..87c42359 100644
--- a/funcs/contour2x2.c
+++ b/funcs/contour2x2.c
@@ -9,15 +9,16 @@
 
 #include "../floatimg.h"
 
-int		verbosity;
+extern int		verbosity;
 
 /* --------------------------------------------------------------------- */
 /* nouveau 4 octobre 2020, juste avant sonoptic de la pluie craignos	 */
 
-int fimg_contour_2x2(FloatImg *psrc, FloatImg *pdst, int notused)
+int fimg_contour_2x2(FloatImg *psrc, FloatImg *pdst, int reverse)
 {
 float		avg[4];
 int		foo, x, y, q;
+float		v1, v2;
 
 int     tbl[] = 			/* deep magic inside */
         {
@@ -28,11 +29,27 @@ int     tbl[] = 			/* deep magic inside */
         };
 
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
+fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, reverse);
 #endif
 
+if (FIMG_TYPE_RGB != psrc->type) {
+	fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
+	return -7;
+	}
+if (fimg_images_not_compatible(psrc, pdst)) {
+	fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
+	return -8;
+	}
+
+if (reverse) {
+	v1 = 0.0;	v2 = 1.0;
+	}
+else	{
+	v1 = 1.0;	v2 = 0.0;
+	}
+
 foo = fimg_meanvalues(psrc, avg);
-if (verbosity) {
+if (verbosity > 1) {
 	fprintf(stderr, "mean values : %f %f %f\n", avg[0], avg[1], avg[2]);
 	}
 
@@ -48,24 +65,27 @@ for (y=0; y<psrc->height-1; y++) {
 			( RP(x+1, y)	<< 2 )	|
 			( RP(x, y+1)	<< 1 )	|
 			( RP(x+1, y+1)	     )	);
-		pdst->R[(y*psrc->width)+x] = tbl[q] ? 1.0 : 0.0 ;
+		pdst->R[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
 
 		q = (	( GP(x,  y)	<< 3 )	|
 			( GP(x+1, y)	<< 2 )	|
 			( GP(x, y+1)	<< 1 )	|
 			( GP(x+1, y+1)	     )	);
-		pdst->G[(y*psrc->width)+x] = tbl[q] ? 1.0 : 0.0 ;
+		pdst->G[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
 
 		q = (	( BP(x, y)	<< 3 )	|
 			( BP(x+1, y)	<< 2 )	|
 			( BP(x, y+1)	<< 1 )	|
 			( BP(x+1, y+1)	     )	);
-		pdst->B[(y*psrc->width)+x] = tbl[q] ? 1.0 : 0.0 ;
+		pdst->B[(y*psrc->width)+x] = tbl[q] ? v1 : v2 ;
 
 		}
 
 	}
 
+/* kill potential NaN values in last row or last column */
+				fimg_killborders(pdst);
+
 return 0;
 }
 /* --------------------------------------------------------------------- */
diff --git a/funcs/displacement.c b/funcs/displacement.c
new file mode 100644
index 00000000..bb0cf491
--- /dev/null
+++ b/funcs/displacement.c
@@ -0,0 +1,89 @@
+/*
+ *		displacement.c
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include   <math.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+/* --------------------------------------------------------------------- */
+/* nouveau 24 octobre 2020, pendant le masque-flamme coronavidique       */
+
+int fimg_displacement_0(FloatImg *psrc, FloatImg *pdst, int flags)
+{
+int		x, y, foo;
+float		minmax[6];
+float		rgb[3];
+float		dltr, dltg, dltb;	/* delta des minmax */
+float		dispx, dispy;
+
+int		dstx, dsty;
+int		in, out;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %p 0x%04x )\n", __func__, psrc, pdst, flags);
+#endif
+
+if (FIMG_TYPE_RGB != psrc->type) {
+	fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
+	return -7;
+	}
+if (fimg_images_not_compatible(psrc, pdst)) {
+	fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
+	return -8;
+	}
+
+foo = fimg_get_minmax_rgb(psrc, minmax);
+if (verbosity) {
+	fimg_print_minmax(minmax, (char *)__func__);
+	}
+dltr = minmax[1] - minmax[0];
+dltg = minmax[3] - minmax[2];
+dltb = minmax[5] - minmax[4];
+
+in = out = 0;
+
+for (y=0; y<psrc->height; y++) {
+
+	for (x=0; x<psrc->width; x++) {
+
+		fimg_get_rgb(psrc, x, y, rgb);
+
+		dispx = (float)x + (rgb[1]/dltg * 20.0);
+		dispy = (float)y + (rgb[2]/dltb * 10.0);
+		dstx = (int)roundf(dispx - 10.0);
+		dsty = (int)roundf(dispy - 10.0);
+
+		if (		(dstx < 0) || (dsty < 0)	||
+				(dstx >= psrc->width)		||
+				(dsty >= psrc->height)		)
+			{
+			/* OUT OF DESTINATION PICTURE */
+			out++;
+			}
+		else	{
+			if (flags & 1) {
+				/* going monochrome */
+				rgb[1] = rgb[2] = rgb[0];
+				}
+			fimg_put_rgb(pdst, dstx, dsty, rgb);
+			in++;
+			}
+
+		}
+
+	}
+
+if (verbosity) fprintf(stderr, "%s -> in %d out %d\n", __func__, in, out);
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
+
+
diff --git a/funcs/dithering.c b/funcs/dithering.c
new file mode 100644
index 00000000..14305487
--- /dev/null
+++ b/funcs/dithering.c
@@ -0,0 +1,31 @@
+/*
+ *	FloatImg : some dithering experiments
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include   <math.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+int fimg_dither_0(FloatImg *psrc, FloatImg *pdst, int flags)
+{
+int		x, y;
+
+for (y=0; y<psrc->height; y++) {
+
+	for (x=0; x<psrc->width; x++)
+		{
+
+
+		}
+	}
+
+return -1;
+}
+/* --------------------------------------------------------------------- */
+
diff --git a/funcs/exporter.c b/funcs/exporter.c
new file mode 100644
index 00000000..ed6b698a
--- /dev/null
+++ b/funcs/exporter.c
@@ -0,0 +1,75 @@
+/*
+ *		exporter.c
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <string.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+/*
+ *	multi-magic 'save file' function.
+ */
+int fimg_export_picture(FloatImg *pic, char *fname, int flags)
+{
+int		filetype;
+int		foo;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p '%s' 0x%X )\n", __func__,
+				pic, fname, flags);
+#endif
+
+filetype = format_from_extension(fname);
+if (verbosity) {
+	fprintf(stderr, "file %s : type %d\n", fname, filetype);
+	}
+
+switch(filetype) {
+
+	case FILE_TYPE_FIMG:
+		foo = fimg_dump_to_file(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_PNM:
+		foo = fimg_save_as_pnm(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_PNG:
+		foo = fimg_save_as_png(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_TGA:
+		fprintf(stderr, "%s: FILE_TYPE_TGA not implemented\n",
+				__func__);
+		foo = -666;
+		break;
+
+	case FILE_TYPE_TIFF:
+		foo = fimg_write_as_tiff(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_FITS:
+		foo = fimg_save_R_as_fits(pic, fname, 0);
+		break;
+
+	default:
+		foo = -1789;
+		break;
+
+	}
+
+if (foo) {
+	fprintf(stderr, "%s: exporting '%s' -> %d\n", __func__,
+					fname, foo);
+	/* que faire maintenant ? */
+	}
+
+return foo;
+}
+/* --------------------------------------------------------------------- */
+
diff --git a/funcs/filtrage.c b/funcs/filtrage.c
index caec0c95..a1fbe59a 100644
--- a/funcs/filtrage.c
+++ b/funcs/filtrage.c
@@ -168,7 +168,8 @@ for (idx=0; idx<w; idx++) {
 	fimg_plot_rgb(img, idx, h-1, 0.0, 0.0, 0.0);
 #endif
 	}
-return -1;
+
+return 0;
 }
 /* -------------------------------------------------------------------- */
 int fimg_lissage_2x2(FloatImg *img)
diff --git a/funcs/qsortrgb.c b/funcs/qsortrgb.c
index 6a1a96a9..dd801f86 100644
--- a/funcs/qsortrgb.c
+++ b/funcs/qsortrgb.c
@@ -27,6 +27,15 @@ int		foo, szimg;
 fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
 #endif
 
+if (FIMG_TYPE_RGB != psrc->type) {
+	fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
+	return -7;
+	}
+if (fimg_images_not_compatible(psrc, pdst)) {
+	fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
+	return -8;
+	}
+
 foo = fimg_copy_data(psrc, pdst);
 
 szimg = pdst->width * pdst->height;
@@ -44,7 +53,7 @@ typedef struct {
 	float	r, g, b;
 	} pix;
 
-static compare_b(const void *p1, const void *p2)
+static int compare_b(const void *p1, const void *p2)
 {
 pix	*s1, *s2;
 s1 = (pix *)p1;
@@ -62,6 +71,15 @@ float		rgb[3];
 fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
 #endif
 
+if (FIMG_TYPE_RGB != psrc->type) {
+	fprintf(stderr, "%s: bad src type %d\n", __func__, psrc->type);
+	return -7;
+	}
+if (fimg_images_not_compatible(psrc, pdst)) {
+	fprintf(stderr, "%s: bad dst type %d\n", __func__, pdst->type);
+	return -8;
+	}
+
 szimg = pdst->width * pdst->height;
 fprintf(stderr, "%s : %d pixels\n", __func__, szimg);
 
diff --git a/funcs/t.c b/funcs/t.c
index d7d543b2..758ddd7b 100644
--- a/funcs/t.c
+++ b/funcs/t.c
@@ -14,12 +14,43 @@ int		verbosity;
 
 float		global_fvalue;
 
+/* --------------------------------------------------------------------- */
+/* nouveau 24 octobre 2020, pendant le masque-flamme coronavidique       */
+
+int essai_displacement(char *infile, char *outfile)
+{
+int		foo;
+FloatImg	src, dst;
+
+fprintf(stderr, "%s : loading %s\n", __func__, infile);
+foo = fimg_create_from_dump(infile, &src);
+if (foo) {
+	fprintf(stderr, "%s: error loading '%s'\n", __func__, infile);
+	return foo;
+	}
+
+fimg_clone(&src, &dst, 1);
+
+foo = fimg_displacement_0(&src, &dst, 0);
+if (foo) {
+	fprintf(stderr, "%s: err %d in disp map 0\n", __func__, foo);
+	return foo;
+	}
+
+foo = fimg_export_picture(&dst, outfile, 0);
+if (foo) {
+	fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
+	return foo;
+	}
+
+return 0;
+}
 /* --------------------------------------------------------------------- */
 /*
  *	nouveau 7 octobre 2020 pendant sonoptic
  */
 
-int essai_qsort_rgb(char *infile)
+int essai_qsort_rgb(char *infile, char *outfile)
 {
 FloatImg	src, dst;
 int		foo;
@@ -45,12 +76,14 @@ if (foo) {
 	return foo;
 	}
 
-foo = fimg_dump_to_file(&dst, "out.fimg", 0);
+foo = fimg_export_picture(&dst, outfile, 0);
 if (foo) {
 	fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
 	return foo;
 	}
 
+fimg_destroy(&src);	fimg_destroy(&dst);
+
 return 0;
 }
 
@@ -58,7 +91,8 @@ return 0;
 /*
  *	nouveau 5 octobre 2020 pendant sonoptic
  */
-int essai_contour_2x2(char *infile)
+
+int essai_contour_2x2(char *infile, char *outfile)
 {
 FloatImg	src, dst;
 int		foo;
@@ -84,19 +118,21 @@ if (foo) {
 	return foo;
 	}
 
-foo = fimg_save_as_pnm(&dst, "out.pnm", 0);
+foo = fimg_export_picture(&dst, outfile, 0);
 if (foo) {
 	fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
 	return foo;
 	}
 
+fimg_destroy(&src);	fimg_destroy(&dst);
+
 return 0;
 }
 /* --------------------------------------------------------------------- */
 /*
  *	nouveau 5 octobre 2020 pendant sonoptic
  */
-int essai_classif(char *infile)
+int essai_classif(char *infile, char *outfile)
 {
 FloatImg	src, dst;
 int		foo;
@@ -124,12 +160,14 @@ if (foo) {
 	return foo;
 	}
 
-foo = fimg_save_as_pnm(&dst, "out.pnm", 0);
+foo = fimg_export_picture(&dst, outfile, 0);
 if (foo) {
 	fprintf(stderr, "%s : err %d saving result\n", __func__, foo);
 	return foo;
 	}
 
+fimg_destroy(&src);	fimg_destroy(&dst);
+
 return 0;
 }
 /* --------------------------------------------------------------------- */
@@ -222,8 +260,8 @@ fimg_save_as_png(&src, "test.png", 0);
 foo = fimg_rotate_90(&src, &dst, 0);
 fprintf(stderr, "rotate 90 -> %d\n", foo);
 
-foo = fimg_save_as_png(&dst, "rotated90.png", 0);
-foo = fimg_save_as_pnm(&dst, "rotated90.pnm", 0);
+foo = fimg_export_picture(&dst, "rotated90.png", 0);
+foo = fimg_export_picture(&dst, "rotated90.pnm", 0);
 
 fimg_destroy(&src);
 
@@ -456,6 +494,12 @@ printf("%-10s %d\n\n", fname, foo);
 foo = format_from_extension(fname="foo.png");
 printf("%-10s %d\n\n", fname, foo);
 
+foo = format_from_extension(fname="foo.tiff");
+printf("%-10s %d\n\n", fname, foo);
+
+foo = format_from_extension(fname="foo.fits");
+printf("%-10s %d\n\n", fname, foo);
+
 foo = format_from_extension(fname="foo.xyzzy");
 printf("%-10s %d\n\n", fname, foo);
 
@@ -473,7 +517,7 @@ re = fimg_test_pattern(&fimg, 9, 1.0);
 if (re) {
 	fprintf(stderr, "fimg_test_pattern -> %d\n", re);
 	}
-fimg_save_as_pnm(&fimg, "mire.pnm", 0);
+fimg_export_picture(&fimg, "mire.pnm", 0);
 
 return -1;
 }
@@ -519,7 +563,6 @@ return 0;
 }
 /* --------------------------------------------------------------------- */
 
-		
 int fimg_essai_histo(FloatImg *src, char *outpic, int k); /* histogram.c */
 int fimg_essai_hsv(char *fname);				/* hsv.c */
 
@@ -551,7 +594,8 @@ return 0;
 }
 /* --------------------------------------------------------------------- */
 enum nCmd { Equalize=1, Rotate, Sfx0, F3x3, MIRE, Wfits, Wpng, Wtiff,
-			Histo, Hsv, Classif, Ctr2x2, Qsortrgb  };
+			Histo, Hsv, Classif, Ctr2x2, Qsortrgb,
+			Displace  };
 typedef struct {
 	char	*name;
 	int	Cmd;
@@ -571,6 +615,7 @@ Command commands[] = {
 	{ "classif",	Classif		},
 	{ "ctr2x2",	Ctr2x2		},
 	{ "qsortrgb",	Qsortrgb	},
+	{ "displace",	Displace	},
 	{ NULL,		0		}
 	} ;
 
@@ -592,7 +637,10 @@ void help(int k)
 {
 Command *pcmd;
 
-fprintf(stderr, "usage:\n\t./t command filename\n");
+fprintf(stderr, "usage:\n\t./t [options] command filename\n");
+
+fprintf(stderr, "options:\n");
+fprintf(stderr, "\t-o  outfile\n");
 
 fprintf(stderr, "commands:\n");
 pcmd = commands;
@@ -608,16 +656,20 @@ exit(0);
 int main(int argc, char *argv[])
 {
 int		foo, opt;
-char		*filename, *command;
+char		*filename, *command, *outfile;
 
 fprintf(stderr, "++++++++ test des fonctions pid=%d\n", getpid());
+fprintf(stderr, "++++++++ compiled "__DATE__" at " __TIME__ "\n");
 
-global_fvalue = 1.0;
+global_fvalue	= 1.0;
+outfile 	= "out.pnm";
+command		= "none";
 
-while ((opt = getopt(argc, argv, "hk:v")) != -1) {
+while ((opt = getopt(argc, argv, "hk:o:p:v")) != -1) {
 	switch(opt) {
 		case 'h':	help(0);			break;
 		case 'k':	global_fvalue = atof(optarg);	break;
+		case 'o':	outfile = optarg;		break;
 		case 'v':	verbosity++;			break;
 		}
 	}
@@ -670,13 +722,16 @@ switch(opt) {
 		foo = fimg_essai_hsv(filename);
 		break;
 	case Classif:
-		foo = essai_classif(filename);
+		foo = essai_classif(filename, outfile);
 		break;
 	case Ctr2x2:
-		foo = essai_contour_2x2(filename);
+		foo = essai_contour_2x2(filename, outfile);
 		break;
 	case Qsortrgb:
-		foo = essai_qsort_rgb(filename);
+		foo = essai_qsort_rgb(filename, outfile);
+		break;
+	case Displace:
+		foo = essai_displacement(filename, outfile);
 		break;
 	default:
 		fprintf(stderr, "%s : bad command\n", command);
@@ -688,7 +743,7 @@ if (foo) {
 	fprintf(stderr, "Essai ====> %d\n", foo);
 	}
 
-fprintf(stderr, "++++++++++++++ end of pid %d\n", getpid());
+fprintf(stderr, "+++++ end of %s pid %d\n", command, getpid());
 return 0;
 }
 /* --------------------------------------------------------------------- */
diff --git a/funcs/utils.c b/funcs/utils.c
index 32a9a1de..78aa0c1b 100644
--- a/funcs/utils.c
+++ b/funcs/utils.c
@@ -7,6 +7,16 @@
 
 extern int verbosity;		/* must be declared around main() */
 
+/* --------------------------------------------------------------------- */
+void fimg_print_minmax(float minmax[6], char *titre)
+{
+
+fprintf(stderr, "\t\tminmax %s\n", titre);
+fprintf(stderr, "red\t\t%10f   %10f\n",   minmax[0], minmax[1]);
+fprintf(stderr, "green\t\t%10f   %10f\n", minmax[2], minmax[3]);
+fprintf(stderr, "blue\t\t%10f   %10f\n",  minmax[4], minmax[5]);
+
+}
 /* --------------------------------------------------------------------- */
 int parse_WxH(char *str, int *pw, int *ph)
 {
diff --git a/funcs/vroum.sh b/funcs/vroum.sh
index c0bb44ac..1fb25881 100755
--- a/funcs/vroum.sh
+++ b/funcs/vroum.sh
@@ -3,10 +3,17 @@
 src=/dev/shm/foo.fimg
 out=out.fimg
 
+<<<<<<< HEAD
 maxi=99
 W="640"
 H="480"
 grabopt=" -s 640x480 -v -p 0 -n 150 -c cos01 -d /dev/video2 "
+=======
+maxi=249
+W="320"
+H="240"
+grabopt=" -s ${W}x${H}w -vv  -p 0 -n 60 -c none "
+>>>>>>> 423ab7f0eca3e74777b24f795fadf075c0066138
 
 mkdir /tmp/V
 
@@ -20,13 +27,15 @@ do
 	grabvidseq -$grabopt -o $src
 
 	fval=$(echo "$foo / $maxi" | bc -l)
-	./t -k $fval  qsortrgb $src
-	echo $foo ' = ' $fval
+	./t -vv -k 0.333 -o $out classif $src
 
+	# fimgstats $out
+
+	echo $foo ' => ' $fval
 	dst=$(printf "/tmp/V/%03d.png" $foo)
-
-	montage $src $out -geometry $G $dst
+	echo $dst
+	montage $src $out -tile 1x2 -geometry $G $dst
 
 done
 
-convert -delay 20 /tmp/V/*.png foo.gif
+convert -delay 10 /tmp/V/*.png foo.gif