From cd6f045789038621ee1d32e398df1b9fc21d685b Mon Sep 17 00:00:00 2001
From: tTh <tth@redlady.dinorama.fr>
Date: Wed, 5 Jul 2023 16:47:43 +0200
Subject: [PATCH] tweaking

---
 experiment/mnt.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/experiment/mnt.c b/experiment/mnt.c
index f0e1df9..c4d66e7 100644
--- a/experiment/mnt.c
+++ b/experiment/mnt.c
@@ -20,7 +20,6 @@ int calcul_histo_gray(FloatImg *img, char *fname, int nbslots, float *pmax)
 int		offset, nbpix, ival;
 FILE		*fp;
 float		pixel, minp, maxp;
-
 int		*counts;
 
 #if DEBUG_LEVEL
@@ -29,6 +28,7 @@ fprintf(stderr, ">>> %s ( %p '%s' %d )\n", __func__,
 #endif
 
 if (FIMG_TYPE_GRAY != img->type) {
+	fprintf(stderr, "%s: image is not in greylevel\n", __func__);
 	return -2;
 	}
 
@@ -64,7 +64,7 @@ if (NULL == (fp = fopen(fname, "w"))) {
 	exit(1);
 	}
 for (ival=0; ival<nbslots; ival++) {
-	fprintf(fp, "%6d  %6d\n", ival, counts[ival]);
+	fprintf(fp, "%6d  %8d\n", ival, counts[ival]);
 	}
 fclose(fp);
 
@@ -90,6 +90,15 @@ float		pente, minp, maxp, seuil;
 fprintf(stderr, ">>> %s ( %p %p )\n", __func__, src, dst);
 #endif
 
+/*
+ *	trying some preprocessor filters
+ */
+//foo = fimg_lissage_2x2(src);
+foo = fimg_lissage_3x3(src);
+if (foo) fprintf(stderr, "    lissage -> %d\n", foo);
+foo = fimg_killborders(src);
+if (foo) fprintf(stderr, "    killborder -> %d\n", foo);
+
 #define W    (src->width)
 #define DX   1.0
 #define DY   1.0
@@ -122,8 +131,8 @@ if (foo) fprintf(stderr, "<<< calcul histo -> %d\n", foo);
 
 
 minp = 1e10;
-seuil = 0.640 * maxp;
-fprintf(stderr, "seuil = %f\n", seuil);
+seuil = 0.700 * maxp;
+fprintf(stderr, "    seuil = %f\n", seuil);
 
 for (offset=0; offset<(src->width*src->height); offset++) {
 	pente = tmp.R[offset];
@@ -132,7 +141,7 @@ for (offset=0; offset<(src->width*src->height); offset++) {
 		}
 	if (pente > maxp)		maxp = pente;
 	}
-fprintf(stderr, "minp --> %f      maxp --> %f\n", minp, maxp);
+// fprintf(stderr, "    minp = %f      maxp = %f\n", minp, maxp);
 
 /* recopie dans l'image destination avec translation hauteur */
 for (offset=0; offset<(src->width*src->height); offset++) {
@@ -143,6 +152,9 @@ for (offset=0; offset<(src->width*src->height); offset++) {
 	dst->B[offset] = pente;
 	}
 
+foo = fimg_killborders(dst);
+if (foo) fprintf(stderr, "    killborder -> %d\n", foo);
+
 /* clean the memory */
 fimg_destroy(&tmp);