X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=images%2Fsignature.h;h=204174768a83c3e0ed22a276691afe5e9d22ccb2;hb=c8c688e0b06fdacb20b28b66b9b0608dae8ca0dc;hp=8c332cf3ab31c513cddd99898862dcbe8f1bdbaf;hpb=e93b0de38ac8b8d9e15d7af5594b1286a81a2c65;p=libucw.git

diff --git a/images/signature.h b/images/signature.h
index 8c332cf3..20417476 100644
--- a/images/signature.h
+++ b/images/signature.h
@@ -5,11 +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 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) */
@@ -17,30 +22,44 @@ struct image_vector {
   byte f[IMAGE_VEC_F];		/* texture features */
 } PACKED;
 
-/* Fetures for image regions (16 bytes) */
+/* Features 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 */
-} PACKED;
+  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 */
+};
 
 #define IMAGE_SIG_TEXTURED	0x1
 
-/* Image signature (10 + len * 16 bytes) */
+/* Image signature (usually 16 + len * 16 bytes) */
 struct image_signature {
-  byte len;			/* Number of regions */
+  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 */
-  struct image_region reg[IMAGE_REG_MAX];/* Feature vector for every region */
-} PACKED;
+  u16 cols;			/* image width */
+  u16 rows;			/* image height */
+  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 */
+};
+
+struct image_cluster {
+  union {
+    struct {
+      s32 dot;			/* dot product of the splitting plane */
+      s8 vec[IMAGE_VEC_F];	/* normal vector of the splitting plane */
+    };
+    struct {
+      u64 pos;			/* cluster size in bytes */
+    };
+  };
+};
 
 static inline uns
 image_signature_size(uns len)
 {
-  return 4 + sizeof(struct image_vector) + len * sizeof(struct image_region);
+  return OFFSETOF(struct image_signature, reg) + len * sizeof(struct image_region);
 }
 
 /* sig-dump.c */
@@ -87,9 +106,9 @@ struct image_sig_data {
 
 /* sig-init.c */
 
-int compute_image_signature(struct image_thread *thread, struct image_signature *sig, struct image *image);
+int compute_image_signature(struct image_context *ctx, struct image_signature *sig, struct image *image);
 
-int image_sig_init(struct image_thread *thread, struct image_sig_data *data, struct image *image);
+int image_sig_init(struct image_context *ctx, struct image_sig_data *data, struct image *image);
 void image_sig_preprocess(struct image_sig_data *data);
 void image_sig_finish(struct image_sig_data *data, struct image_signature *sig);
 void image_sig_cleanup(struct image_sig_data *data);
@@ -104,9 +123,8 @@ void image_sig_detect_textured(struct image_sig_data *data);
 
 /* sig-cmp.c */
 
-#define IMAGE_SIG_DIST_SCALE (3 + 3 + 8 + 16)
-
 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