upekux/nbis/libmindtct/globals.c

/*******************************************************************************

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*******************************************************************************/


/***********************************************************************
      LIBRARY: LFS - NIST Latent Fingerprint System

      FILE:    GLOBALS.C
      AUTHOR:  Michael D. Garris
      DATE:    03/16/1999
      UPDATED: 10/04/1999 Version 2 by MDG

      Contains general global variable definitions required by the
      NIST Latent Fingerprint System (LFS).
***********************************************************************/

#include "lfs.h"

/*************************************************************************/
/*        GOBAL DECLARATIONS                                             */
/*************************************************************************/

#ifdef LOG_REPORT
FILE *logfp;
#endif

/* Constants (C) for defining 4 DFT frequencies, where  */
/* frequency is defined as C*(PI_FACTOR).  PI_FACTOR    */
/* regulates the period of the function in x, so:       */
/*      1 = one period in range X.                      */
/*      2 = twice the frequency in range X.             */
/*      3 = three times the frequency in reange X.      */
/*      4 = four times the frequency in ranage X.       */
double dft_coefs[NUM_DFT_WAVES] = { 1,2,3,4 };

/* Allocate and initialize a global LFS parameters structure. */
LFSPARMS lfsparms = {
   /* Image Controls */
   PAD_VALUE,
   JOIN_LINE_RADIUS,

   /* Map Controls */
   IMAP_BLOCKSIZE,
   UNUSED_INT,           /* windowsize */
   UNUSED_INT,           /* windowoffset */
   NUM_DIRECTIONS,
   START_DIR_ANGLE,
   RMV_VALID_NBR_MIN,
   DIR_STRENGTH_MIN,
   DIR_DISTANCE_MAX,
   SMTH_VALID_NBR_MIN,
   VORT_VALID_NBR_MIN,
   HIGHCURV_VORTICITY_MIN,
   HIGHCURV_CURVATURE_MIN,
   UNUSED_INT,           /* min_interpolate_nbrs */
   UNUSED_INT,           /* percentile_min_max   */
   UNUSED_INT,           /* min_contrast_delta   */

   /* DFT Controls */
   NUM_DFT_WAVES,
   POWMAX_MIN,
   POWNORM_MIN,
   POWMAX_MAX,
   FORK_INTERVAL,
   FORK_PCT_POWMAX,
   FORK_PCT_POWNORM,

   /* Binarization Controls */
   DIRBIN_GRID_W,
   DIRBIN_GRID_H,
   ISOBIN_GRID_DIM,
   NUM_FILL_HOLES,

   /* Minutiae Detection Controls */
   MAX_MINUTIA_DELTA,
   MAX_HIGH_CURVE_THETA,
   HIGH_CURVE_HALF_CONTOUR,
   MIN_LOOP_LEN,
   MIN_LOOP_ASPECT_DIST,
   MIN_LOOP_ASPECT_RATIO,

   /* Minutiae Link Controls */
   LINK_TABLE_DIM,
   MAX_LINK_DIST,
   MIN_THETA_DIST,
   MAXTRANS,
   SCORE_THETA_NORM,
   SCORE_DIST_NORM,
   SCORE_DIST_WEIGHT,
   SCORE_NUMERATOR,

   /* False Minutiae Removal Controls */
   MAX_RMTEST_DIST,
   MAX_HOOK_LEN,
   MAX_HALF_LOOP,
   TRANS_DIR_PIX,
   SMALL_LOOP_LEN,
   SIDE_HALF_CONTOUR,
   INV_BLOCK_MARGIN,
   RM_VALID_NBR_MIN,
   UNUSED_INT,         /* max_overlap_dist       */
   UNUSED_INT,         /* max_overlap_join_dist  */
   UNUSED_INT,         /* malformation_steps_1   */
   UNUSED_INT,         /* malformation_steps_2   */
   UNUSED_DBL,         /* min_malformation_ratio */
   UNUSED_INT,         /* max_malformation_dist  */
   PORES_TRANS_R,
   PORES_PERP_STEPS,
   PORES_STEPS_FWD,
   PORES_STEPS_BWD,
   PORES_MIN_DIST2,
   PORES_MAX_RATIO,

   /* Ridge Counting Controls */
   MAX_NBRS,
   MAX_RIDGE_STEPS
};


/* Allocate and initialize VERSION 2 global LFS parameters structure. */
LFSPARMS lfsparms_V2 = {
   /* Image Controls */
   PAD_VALUE,
   JOIN_LINE_RADIUS,

   /* Map Controls */
   MAP_BLOCKSIZE_V2,
   MAP_WINDOWSIZE_V2,
   MAP_WINDOWOFFSET_V2,
   NUM_DIRECTIONS,
   START_DIR_ANGLE,
   RMV_VALID_NBR_MIN,
   DIR_STRENGTH_MIN,
   DIR_DISTANCE_MAX,
   SMTH_VALID_NBR_MIN,
   VORT_VALID_NBR_MIN,
   HIGHCURV_VORTICITY_MIN,
   HIGHCURV_CURVATURE_MIN,
   MIN_INTERPOLATE_NBRS,
   PERCENTILE_MIN_MAX,
   MIN_CONTRAST_DELTA,

   /* DFT Controls */
   NUM_DFT_WAVES,
   POWMAX_MIN,
   POWNORM_MIN,
   POWMAX_MAX,
   FORK_INTERVAL,
   FORK_PCT_POWMAX,
   FORK_PCT_POWNORM,

   /* Binarization Controls */
   DIRBIN_GRID_W,
   DIRBIN_GRID_H,
   UNUSED_INT,          /* isobin_grid_dim */
   NUM_FILL_HOLES,

   /* Minutiae Detection Controls */
   MAX_MINUTIA_DELTA,
   MAX_HIGH_CURVE_THETA,
   HIGH_CURVE_HALF_CONTOUR,
   MIN_LOOP_LEN,
   MIN_LOOP_ASPECT_DIST,
   MIN_LOOP_ASPECT_RATIO,

   /* Minutiae Link Controls */
   UNUSED_INT,          /* link_table_dim     */
   UNUSED_INT,          /* max_link_dist      */
   UNUSED_INT,          /* min_theta_dist     */
   MAXTRANS,            /* used for removing overlaps as well */
   UNUSED_DBL,          /* score_theta_norm   */
   UNUSED_DBL,          /* score_dist_norm    */
   UNUSED_DBL,          /* score_dist_weight  */
   UNUSED_DBL,          /* score_numerator    */

   /* False Minutiae Removal Controls */
   MAX_RMTEST_DIST_V2,
   MAX_HOOK_LEN_V2,
   MAX_HALF_LOOP_V2,
   TRANS_DIR_PIX_V2,
   SMALL_LOOP_LEN,
   SIDE_HALF_CONTOUR,
   INV_BLOCK_MARGIN_V2,
   RM_VALID_NBR_MIN,
   MAX_OVERLAP_DIST,
   MAX_OVERLAP_JOIN_DIST,
   MALFORMATION_STEPS_1,
   MALFORMATION_STEPS_2,
   MIN_MALFORMATION_RATIO,
   MAX_MALFORMATION_DIST,
   PORES_TRANS_R,
   PORES_PERP_STEPS,
   PORES_STEPS_FWD,
   PORES_STEPS_BWD,
   PORES_MIN_DIST2,
   PORES_MAX_RATIO,

   /* Ridge Counting Controls */
   MAX_NBRS,
   MAX_RIDGE_STEPS
};

/* Variables for conducting 8-connected neighbor analyses. */
/* Pixel neighbor offsets:  0  1  2  3  4  5  6  7  */     /* 7 0 1 */
int nbr8_dx[] =          {  0, 1, 1, 1, 0,-1,-1,-1 };      /* 6 C 2 */
int nbr8_dy[] =          { -1,-1, 0, 1, 1, 1, 0,-1 };      /* 5 4 3 */

/* The chain code lookup matrix for 8-connected neighbors. */
/* Should put this in globals.                             */
int chaincodes_nbr8[]={ 3, 2, 1,
                        4,-1, 0,
                        5, 6, 7};

/* Global array of feature pixel pairs. */
FEATURE_PATTERN feature_patterns[]=
                       {{RIDGE_ENDING,  /* a. Ridge Ending (appearing) */
                         APPEARING,
                         {0,0},
                         {0,1},
                         {0,0}},

                        {RIDGE_ENDING,  /* b. Ridge Ending (disappearing) */
                         DISAPPEARING,
                         {0,0},
                         {1,0},
                         {0,0}},

                        {BIFURCATION,   /* c. Bifurcation (disappearing) */
                         DISAPPEARING,
                         {1,1},
                         {0,1},
                         {1,1}},

                        {BIFURCATION,   /* d. Bifurcation (appearing) */
                         APPEARING,
                         {1,1},
                         {1,0},
                         {1,1}},

                        {BIFURCATION,   /* e. Bifurcation (disappearing) */
                         DISAPPEARING,
                         {1,0},
                         {0,1},
                         {1,1}},

                        {BIFURCATION,   /* f. Bifurcation (disappearing) */
                         DISAPPEARING,
                         {1,1},
                         {0,1},
                         {1,0}},

                        {BIFURCATION,   /* g. Bifurcation (appearing) */
                         APPEARING,
                         {1,1},
                         {1,0},
                         {0,1}},

                        {BIFURCATION,   /* h. Bifurcation (appearing) */
                         APPEARING,
                         {0,1},
                         {1,0},
                         {1,1}},

                        {BIFURCATION,   /* i. Bifurcation (disappearing) */
                         DISAPPEARING,
                         {1,0},
                         {0,1},
                         {1,0}},

                        {BIFURCATION,   /* j. Bifurcation (appearing) */
                         APPEARING,
                         {0,1},
                         {1,0},
                         {0,1}}};