From c27ba2060606c7f7677754572042d06f1f81a9fa Mon Sep 17 00:00:00 2001
From: Pavel Charvat <pavel.charvat@netcentrum.cz>
Date: Tue, 8 Aug 2006 20:30:15 +0200
Subject: [PATCH] new config file... almost empty yet

---
 cf/images          | 21 +++++++++++++++++++++
 images/Makefile    |  2 +-
 images/config.c    | 31 +++++++++++++++++++++++++++++++
 images/sig-init.c  |  4 ++++
 images/signature.h |  3 +++
 5 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 cf/images
 create mode 100644 images/config.c

diff --git a/cf/images b/cf/images
new file mode 100644
index 00000000..3c1f39b7
--- /dev/null
+++ b/cf/images
@@ -0,0 +1,21 @@
+# Configuration of the image library (included by cf/sherlock)
+
+######## General parameters #####################################################
+
+Images {
+}
+
+######## Image signatures #######################################################
+
+ImageSig {
+
+MinWidth	16
+MinHeight	16
+
+}
+
+######## Duplicates finder ######################################################
+
+ImageDup {
+}
+
diff --git a/images/Makefile b/images/Makefile
index 97abc79b..e2ab4197 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -4,7 +4,7 @@ DIRS+=images
 
 PROGS+=$(addprefix $(o)/images/,image-tool image-dup-test image-sim-test)
 
-LIBIMAGES_MODS=image scale color alpha io-main dup-init dup-cmp sig-dump sig-init sig-cmp object
+LIBIMAGES_MODS=config image scale color alpha io-main dup-init dup-cmp sig-dump sig-init sig-cmp object
 
 LIBIMAGES_LIBS=-lm
 
diff --git a/images/config.c b/images/config.c
new file mode 100644
index 00000000..6d3c927a
--- /dev/null
+++ b/images/config.c
@@ -0,0 +1,31 @@
+/*
+ *	Image Library -- Configuration
+ *
+ *	(c) 2006 Pavel Charvat <pchar@ucw.cz>
+ */
+
+#undef LOCAL_DEBUG
+
+#include "lib/lib.h"
+#include "lib/conf.h"
+#include "images/images.h"
+#include "images/signature.h"
+
+#include <string.h>
+
+uns image_sig_min_width;
+uns image_sig_min_height;
+
+static struct cf_section sig_config = {
+  CF_ITEMS{
+    CF_UNS("MinWidth", &image_sig_min_width),
+    CF_UNS("MinHeight", &image_sig_min_height),
+    CF_END
+  }
+};
+
+static void CONSTRUCTOR
+images_init_config(void)
+{
+  cf_declare_section("ImageSig", &sig_config, 0);
+}
diff --git a/images/sig-init.c b/images/sig-init.c
index 9c9db6c3..9ebd5351 100644
--- a/images/sig-init.c
+++ b/images/sig-init.c
@@ -150,6 +150,7 @@ compute_k_means(struct block *blocks, uns blocks_count, struct region *regions,
 int
 compute_image_signature(struct image_thread *thread, struct image_signature *sig, struct image *image)
 {
+  bzero(sig, sizeof(*sig));
   uns cols = image->cols;
   uns rows = image->rows;
 
@@ -263,6 +264,9 @@ compute_image_signature(struct image_thread *thread, struct image_signature *sig
   sig->vec.f[4] = hl_sum / blocks_count;
   sig->vec.f[5] = hh_sum / blocks_count;
 
+  if (cols < image_sig_min_width || rows < image_sig_min_height)
+    return 1;
+
   /* Quantize blocks to image regions */
   struct region regions[IMAGE_REG_MAX];
   sig->len = compute_k_means(blocks, blocks_count, regions, MIN(blocks_count, IMAGE_REG_MAX));
diff --git a/images/signature.h b/images/signature.h
index 695ca722..981e0af1 100644
--- a/images/signature.h
+++ b/images/signature.h
@@ -1,6 +1,9 @@
 #ifndef _IMAGES_SIGNATURE_H
 #define _IMAGES_SIGNATURE_H
 
+/* Configuration */
+extern uns image_sig_min_width, image_sig_min_height;
+
 #define IMAGE_VEC_F	6
 #define IMAGE_REG_F	IMAGE_VEC_F
 #define IMAGE_REG_H	3
-- 
2.39.2