diff --git a/floatimg.h b/floatimg.h
index f713bf3..9fc3f7e 100644
--- a/floatimg.h
+++ b/floatimg.h
@@ -20,7 +20,7 @@
  *	https://git.tetalab.org/tTh/FloatImg
  */
 
-#define		FIMG_VERSION	(227)
+#define		FIMG_VERSION	(229)
 #define		RELEASE_NAME	("noname")
 #define		PATCH_LEVEL	("aaaa")
 
@@ -269,7 +269,7 @@ 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);
-int fimg_do_stripes(FloatImg *img, int mode);
+int fimg_do_stripes(FloatImg *img, float fmax, int mode);
 
 /*	FIMG native file module		*/
 int   fimg_fileinfos(char *fname, int *datas);
diff --git a/funcs/rampes.c b/funcs/rampes.c
index a612b82..53a4215 100644
--- a/funcs/rampes.c
+++ b/funcs/rampes.c
@@ -62,15 +62,18 @@ for (x=0; x<img->width; x++) {
 return 0;
 }
 /* --------------------------------------------------------------------- */
-/*				nouveau 19 septembre 2022		 */
+/*				nouveau 19 septembre 2022
+ *
+ *	6 octobre 2023 : rajout du parametre 'fmax'
+ */
 
-int fimg_do_stripes(FloatImg *img, int mode)
+int fimg_do_stripes(FloatImg *img, float fmax, int mode)
 {
 int		x, y, quad;
 float		*ligne;
 float		fr, fg, fb;
 
-fprintf(stderr, ">>> %s ( %p %d )\n", __func__, img, mode);
+fprintf(stderr, ">>> %s ( %p %f %d )\n", __func__, img, fmax, mode);
 
 /*
  *	allocate and fill a lookup table
@@ -79,8 +82,10 @@ if (NULL==(ligne=malloc(img->width*sizeof(float)))) {
 	fprintf(stderr, "%s: malloc fail\n", __func__);
 	exit(1);
 	}
-for (x=0; x<img->width; x++)
+for (x=0; x<img->width; x++) {
 	ligne[x] = (float)x / (float)img->width;
+	ligne[x] *= fmax;
+	}
 
 /*
  *	build the pixels
diff --git a/tools/mkfimg.c b/tools/mkfimg.c
index 0cf4b0a..fbcf83a 100644
--- a/tools/mkfimg.c
+++ b/tools/mkfimg.c
@@ -174,16 +174,16 @@ if (foo) {
 
 switch(type) {
 	default:
-	case T_BLACK:		fimg_clear(&fimg);		break;
-	case T_DRAND48:		fimg_drand48(&fimg, fvalue);	break;
+	case T_BLACK:		fimg_clear(&fimg);			break;
+	case T_DRAND48:		fimg_drand48(&fimg, fvalue);		break;
 	case T_GRAY:		fimg_rgb_constant(&fimg, fvalue, fvalue, fvalue);
-				break;
-	case T_HDEG_A:		fimg_hdeg_a(&fimg, 1.0);	break;
-	case T_VDEG_A:		fimg_vdeg_a(&fimg, 1.0);	break;
-	case T_TPAT0:		fimg_test_pattern(&fimg, 0, fvalue); break;
-	case T_MIRCOL1:		fimg_mircol_1(&fimg, fvalue);	break;
-	case T_BLOUP:		fimg_draw_something(&fimg);	break;
-	case T_STRIPES:		fimg_do_stripes(&fimg, 0);	break;
+									break;
+	case T_HDEG_A:		fimg_hdeg_a(&fimg, 1.0);		break;
+	case T_VDEG_A:		fimg_vdeg_a(&fimg, 1.0);		break;
+	case T_TPAT0:		fimg_test_pattern(&fimg, 0, fvalue);	break;
+	case T_MIRCOL1:		fimg_mircol_1(&fimg, fvalue);		break;
+	case T_BLOUP:		fimg_draw_something(&fimg);		break;
+	case T_STRIPES:		fimg_do_stripes(&fimg, fvalue, 0);	break;
 	case -1:		exit(1);
 	}