experiment - store relative centroid position for each image region

[libucw.git] / images / signature.h

diff --git a/images/signature.h b/images/signature.h
index 4f53f24ff57b004bba818910c5ccd3454a8dbf57..1643f317a55a3204cce47b43459d24d801659cd1 100644 (file)
--- a/images/signature.h
+++ b/images/signature.h
@@ -5,12 +5,16 @@
 extern uns image_sig_min_width, image_sig_min_height;
 extern uns *image_sig_prequant_thresholds;
 extern uns image_sig_postquant_min_steps, image_sig_postquant_max_steps, image_sig_postquant_threshold;
+extern double image_sig_border_size;
+extern int image_sig_border_bonus;
+extern double image_sig_inertia_scale[];
 extern double image_sig_textured_threshold;
-extern uns image_sig_compare_method;
+extern int image_sig_compare_method;
+extern uns image_sig_cmp_features_weights[];
 
 #define IMAGE_VEC_F    6
 #define IMAGE_REG_F    IMAGE_VEC_F
-#define IMAGE_REG_H    3
+#define IMAGE_REG_H    5
 #define IMAGE_REG_MAX  16
 
 /* K-dimensional feature vector (6 bytes) */
@@ -20,10 +24,11 @@ struct image_vector {
 
 /* Fetures for image regions (16 bytes) */
 struct image_region {
-  byte f[IMAGE_VEC_F];         /* texture features */
-  u16 h[IMAGE_REG_H];          /* shape features */
-  u16 wa;                      /* normalized area percentage */
-  u16 wb;                      /* normalized weight */
+  byte f[IMAGE_VEC_F];         /* texture features - L, u, v, LH, HL, HH */
+  byte h[IMAGE_REG_H];         /* shape/pos features - I1, I2, I3, X, Y */
+  byte wa;                     /* normalized area percentage */
+  byte wb;                     /* normalized weight */
+  u16 reserved;
 } PACKED;
 
 #define IMAGE_SIG_TEXTURED     0x1
@@ -32,9 +37,9 @@ struct image_region {
 struct image_signature {
   byte len;                    /* Number of regions */
   byte flags;                  /* IMAGE_SIG_xxx */
-  byte df;                     /* Average f dist */
-  u16 dh;                      /* Average h dist */
-  struct image_vector vec;     /* Combination of all regions... simple signature */
+  u16 df;                      /* Average weighted f dist */
+  u16 dh;                      /* Average weighted h dist */
+  struct image_vector vec;     /* Average features of all regions... simple signature */
   struct image_region reg[IMAGE_REG_MAX];/* Feature vector for every region */
 } PACKED;
 
@@ -53,7 +58,7 @@ struct image_cluster {
 static inline uns
 image_signature_size(uns len)
 {
-  return 5 + sizeof(struct image_vector) + len * sizeof(struct image_region);
+  return OFFSETOF(struct image_signature, reg) + len * sizeof(struct image_region);
 }
 
 /* sig-dump.c */
@@ -117,9 +122,8 @@ void image_sig_detect_textured(struct image_sig_data *data);
 
 /* sig-cmp.c */
 
-#define IMAGE_SIG_DIST_SCALE 30
-
 uns image_signatures_dist(struct image_signature *sig1, struct image_signature *sig2);
+uns image_signatures_dist_explain(struct image_signature *sig1, struct image_signature *sig2, void (*msg)(byte *text, void *param), void *param);
 
 #endif