MergeImages: Added several config options.

[libucw.git] / images / signature.h

diff --git a/images/signature.h b/images/signature.h
index 5f8009a196b34da557987b4740e90a9c2b8e6c39..204174768a83c3e0ed22a276691afe5e9d22ccb2 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) */
@@ -18,42 +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 (11 + 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 */
+      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 */
+      u64 pos;                 /* cluster size in bytes */
     };
   };
-} PACKED;
+};
 
 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 */
@@ -100,9 +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);
@@ -117,9 +123,8 @@ 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