diff --git a/Lib/contrast.c b/Lib/contrast.c
index 77d903e..5634ce9 100644
--- a/Lib/contrast.c
+++ b/Lib/contrast.c
@@ -14,8 +14,9 @@
  */
 int Image_egalise_cos01(Image_Desc *source, Image_Desc *but, int k)
 {
-unsigned char	lut[256], uc;
-int		idx, x, y, pix, foo;
+int		lut[256], uc;
+int		idx, foo;
+/* int		x, y, pix; */
 float		fidx;
 
 fprintf(stderr, ">>> %s ( %p  %p  %d )\n", __func__,
@@ -33,6 +34,9 @@ for (idx=0; idx<256; idx++) {
 	/* printf("%7d    %7d\n", idx, uc); */
 	}
 
+/*
+ *   old original code, replaced...
+ *
 for (y=0; y<source->height; y++) {
 	for (x=0; x<source->width; x++) {
 
@@ -45,8 +49,12 @@ for (y=0; y<source->height; y++) {
 
 		}
 	}
+ *
+ *	... by a func from 'calculs.c'
+ */
+Image_LUT_mono(source, but, lut);
 
-return FULL_NUCKED;
+return FUNC_IS_BETA;
 }
 /*::------------------------------------------------------------------::*/
 /*