introduction des ajustements de contraste

lib/fimg-2gray.c

@@ -33,6 +33,9 @@ if (FIMG_TYPE_RGB != src->type) {
 if (FIMG_TYPE_GRAY != dst->type) {
 	fprintf(stderr, "%s : bad dst type %d on %p\n", __func__, 
 				dst->type, dst);
+	/*
+	 * may be we can convert dst picture on the fly ?
+	 */
 	return -9;
 	}
 

lib/runme.sh

@@ -1,21 +1,23 @@
 #!/bin/bash
 
 
-grabvidseq -s 960x720 -n 600 -p 0.5 -vv -g -o original.fimg
+../v4l2/grabvidseq -s 960x720 -n 10000 -p 0.078		\
+			-vv -g -c none			\
+			-o original.fimg
 
 make t && ./t
 
 for picz in original power2 squareroot cos_01
 do
 
-	echo _______________ ${picz}
+	echo _______________________ ${picz}
 
 	# ../tools/fimgstats -v ${picz}.fimg
 	../tools/fimg2pnm -v ${picz}.fimg ${picz}.pnm
 
-	convert -pointsize 36			\
-		-fill white -annotate +10+28 "${picz}" 			\
-		-fill black -annotate +12+30 "${picz}" 			\
+	convert -pointsize 48			\
+		-fill black -annotate +14+40 "${picz}" 			\
+		-fill white -annotate +16+42 "${picz}" 			\
 		${picz}.pnm ${picz}.png
 
 	rm ${picz}.pnm

lib/t.c

@@ -13,29 +13,6 @@
 
 int		verbosity;
 
-/* ---------------------------------------------------------------- */
-int petit_dessin(FloatImg *img)
-{
-int		x, y;
-float		r, g, b;
-
-for (y=0; y<img->height; y++) {
-
-	r = (float)y / (float)img->height;
-
-	for (x=0; x<img->width; x++) {
-
-		g = (float)x / (float)img->width;
-		b = 0.0;;
-
-		fimg_plot_rgb(img, x, y, r, g, b);
-
-		}
-
-	}
-
-return -1;
-}
 /* ---------------------------------------------------------------- */
 
 int essai_2gray(FloatImg *picz, char *outname)
@@ -77,7 +54,6 @@ double		maxi;
 foo = fimg_create_from_dump(fname, &dessin);
 foo = fimg_clone(&dessin, &copy, 0);
 
-
 maxi = (double)fimg_get_maxvalue(&dessin);
 fprintf(stderr, "image source   valeur maxi = %f\n", maxi);