diff --git a/floatimg.h b/floatimg.h
index 4d3c70f..bba9d58 100644
--- a/floatimg.h
+++ b/floatimg.h
@@ -4,7 +4,7 @@
  *	http://la.buvette.org/photos/cumul
  */
 
-#define		FIMG_VERSION	127
+#define		FIMG_VERSION	128
 
 /*
  *	in memory descriptor
@@ -15,9 +15,7 @@ typedef struct {
 	int		type;
 	float		fval;
 	int		count;
-
 	float		*R, *G, *B, *A;
-
 	int		reserved;
 	} FloatImg;
 
@@ -64,6 +62,7 @@ int   fimg_type_is_valid(int type);
 int   fimg_print_version(int k);
 void  fimg_print_sizeof(void);
 void  fimg_printhead(FloatImg *h);
+void  fimg_printdims(char *txt, FloatImg *pi);
 int   fimg_describe(FloatImg *head, char *txt);
 char *fimg_str_type(int type);
 int   fimg_plot_rgb (FloatImg *head, int x, int y,
diff --git a/lib/fimg-core.c b/lib/fimg-core.c
index 3385652..7ea0d46 100644
--- a/lib/fimg-core.c
+++ b/lib/fimg-core.c
@@ -57,6 +57,11 @@ fprintf(stderr, "   sz filehead =   %lu\n", sizeof(FimgFileHead));
 fprintf(stderr, "   sz filter   =   %lu\n", sizeof(FimgFilter3x3));
 }
 /* --------------------------------------------------------------------- */
+void fimg_printdims(char *txt, FloatImg *pi)
+{
+fprintf(stderr, "# %s   %dx%d\n", txt, pi->width, pi->height);
+}
+/* --------------------------------------------------------------------- */
 void fimg_printhead(FloatImg *h)
 {
 printf("%5d  %5d  %2d  %p %p %p %p\n", h->width, h->height, h->type,