edges.h

   1 #ifndef __SPARROW_EDGES_H__
   2 #define __SPARROW_EDGES_H__
   3
   4 #define SIG_WEIGHT 2
   5
   6 /* for discarding outliers */
   7 #define OUTLIER_RADIUS 7
   8 #define OUTLIER_THRESHOLD (OUTLIER_RADIUS * OUTLIER_RADIUS)
   9
  10 #define SPARROW_MAP_LUT_SHIFT 1
  11 #define SPARROW_FP_2_LUT (SPARROW_FIXED_POINT - SPARROW_MAP_LUT_SHIFT)
  12
  13
  14
  15 #define FL_DUMPFILE "/tmp/edges.dump"
  16
  17
  18 typedef enum corner_status {
  19   CORNER_UNUSED,
  20   CORNER_PROJECTED,
  21   CORNER_EXACT,
  22 } corner_status_t;
  23
  24 typedef enum edges_state {
  25   EDGES_FIND_NOISE,
  26   EDGES_FIND_LINES,
  27   EDGES_FIND_CORNERS,
  28
  29   EDGES_NEXT_STATE,
  30 } edges_state_t;
  31
  32 typedef struct sparrow_corner_s {
  33   int in_x;
  34   int in_y;
  35   /*dyr -> dy to next point right
  36    dxd ->dx to next point down */
  37   int dxr;
  38   int dyr;
  39   int dxd;
  40   int dyd;
  41   corner_status_t status;
  42 } sparrow_corner_t;
  43
  44 typedef struct sparrow_voter_s {
  45   int x;
  46   int y;
  47   guint32 signal;
  48 } sparrow_voter_t;
  49
  50 typedef struct sparrow_cluster_s {
  51   int n;
  52   sparrow_voter_t voters[8];
  53 } sparrow_cluster_t;
  54
  55
  56 typedef union sparrow_signal_s {
  57   guint16 v_signal;
  58   guint16 h_signal;
  59 } sparrow_signal_t;
  60
  61
  62 typedef struct sparrow_intersect_s {
  63   guint16 lines[2];
  64   guint16 signal[2];
  65 } sparrow_intersect_t;
  66
  67 typedef struct sparrow_line_s {
  68   gint offset;
  69   sparrow_axis_t dir;
  70   gint index;
  71 } sparrow_line_t;
  72
  73 typedef struct sparrow_find_lines_s {
  74   //sparrow_line_t *lines;
  75   sparrow_line_t *h_lines;
  76   sparrow_line_t *v_lines;
  77   sparrow_line_t **shuffled_lines;
  78   int current;
  79   int n_lines;
  80   int n_vlines;
  81   int n_hlines;
  82   gint shift1;
  83   gint shift2;
  84   sparrow_intersect_t *map;
  85   sparrow_corner_t *mesh;
  86   sparrow_cluster_t *clusters;
  87   IplImage *debug;
  88   IplImage *threshold;
  89   IplImage *working;
  90   IplImage *input;
  91   int counter;
  92   edges_state_t state;
  93 } sparrow_find_lines_t;
  94
  95
  96 #define DEBUG_FIND_LINES(fl)GST_DEBUG(          \
  97   "fl:\n"                                       \
  98   "  sparrow_line_t *h_lines: %p\n"             \
  99   "  sparrow_line_t *v_lines: %p\n"             \
 100   "  sparrow_line_t **shuffled_lines: %p\n"     \
 101   "  int current: %d\n"                         \
 102   "  int n_lines: %d\n"                         \
 103   "  int n_vlines: %d\n"                        \
 104   "  int n_hlines: %d\n"                        \
 105   "  gint threshold: %d\n"                      \
 106   "  gint shift1: %d\n"                         \
 107   "  gint shift2: %d\n"                         \
 108   "  sparrow_intersect_t *map: %p\n"            \
 109   "  sparrow_corner_t *mesh: %p\n"              \
 110   "  sparrow_cluster_t *clusters: %p\n"         \
 111   ,                                             \
 112     (fl)->h_lines,                                \
 113     (fl)->v_lines,                                \
 114     (fl)->shuffled_lines,                         \
 115     (fl)->current,                                \
 116     (fl)->n_lines,                                \
 117     (fl)->n_vlines,                               \
 118     (fl)->n_hlines,                               \
 119     (fl)->threshold,                              \
 120     (fl)->shift1,                                 \
 121     (fl)->shift2,                                 \
 122     (fl)->map,                                    \
 123     (fl)->mesh,                                   \
 124   (fl)->clusters)                                 \
 125
 126 //#undef debug_find_lines
 127 //#define debug_find_lines(x) /* */
 128
 129
 130 #endif /*have this .h*/