294 lines
8.9 KiB
C
294 lines
8.9 KiB
C
/*******************************************************************************
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License:
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This software was developed at the National Institute of Standards and
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Technology (NIST) by employees of the Federal Government in the course
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of their official duties. Pursuant to title 17 Section 105 of the
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United States Code, this software is not subject to copyright protection
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and is in the public domain. NIST assumes no responsibility whatsoever for
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its use by other parties, and makes no guarantees, expressed or implied,
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about its quality, reliability, or any other characteristic.
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Disclaimer:
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This software was developed to promote biometric standards and biometric
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technology testing for the Federal Government in accordance with the USA
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PATRIOT Act and the Enhanced Border Security and Visa Entry Reform Act.
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Specific hardware and software products identified in this software were used
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in order to perform the software development. In no case does such
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identification imply recommendation or endorsement by the National Institute
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of Standards and Technology, nor does it imply that the products and equipment
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identified are necessarily the best available for the purpose.
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*******************************************************************************/
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/***********************************************************************
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LIBRARY: LFS - NIST Latent Fingerprint System
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FILE: GLOBALS.C
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AUTHOR: Michael D. Garris
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DATE: 03/16/1999
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UPDATED: 10/04/1999 Version 2 by MDG
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Contains general global variable definitions required by the
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NIST Latent Fingerprint System (LFS).
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***********************************************************************/
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#include <lfs.h>
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/*************************************************************************/
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/* GOBAL DECLARATIONS */
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/*************************************************************************/
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#ifdef LOG_REPORT
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FILE *logfp;
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#endif
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/* Constants (C) for defining 4 DFT frequencies, where */
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/* frequency is defined as C*(PI_FACTOR). PI_FACTOR */
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/* regulates the period of the function in x, so: */
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/* 1 = one period in range X. */
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/* 2 = twice the frequency in range X. */
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/* 3 = three times the frequency in reange X. */
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/* 4 = four times the frequency in ranage X. */
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double dft_coefs[NUM_DFT_WAVES] = { 1,2,3,4 };
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/* Allocate and initialize a global LFS parameters structure. */
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LFSPARMS lfsparms = {
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/* Image Controls */
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PAD_VALUE,
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JOIN_LINE_RADIUS,
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/* Map Controls */
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IMAP_BLOCKSIZE,
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UNUSED_INT, /* windowsize */
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UNUSED_INT, /* windowoffset */
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NUM_DIRECTIONS,
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START_DIR_ANGLE,
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RMV_VALID_NBR_MIN,
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DIR_STRENGTH_MIN,
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DIR_DISTANCE_MAX,
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SMTH_VALID_NBR_MIN,
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VORT_VALID_NBR_MIN,
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HIGHCURV_VORTICITY_MIN,
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HIGHCURV_CURVATURE_MIN,
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UNUSED_INT, /* min_interpolate_nbrs */
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UNUSED_INT, /* percentile_min_max */
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UNUSED_INT, /* min_contrast_delta */
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/* DFT Controls */
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NUM_DFT_WAVES,
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POWMAX_MIN,
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POWNORM_MIN,
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POWMAX_MAX,
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FORK_INTERVAL,
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FORK_PCT_POWMAX,
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FORK_PCT_POWNORM,
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/* Binarization Controls */
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DIRBIN_GRID_W,
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DIRBIN_GRID_H,
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ISOBIN_GRID_DIM,
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NUM_FILL_HOLES,
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/* Minutiae Detection Controls */
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MAX_MINUTIA_DELTA,
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MAX_HIGH_CURVE_THETA,
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HIGH_CURVE_HALF_CONTOUR,
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MIN_LOOP_LEN,
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MIN_LOOP_ASPECT_DIST,
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MIN_LOOP_ASPECT_RATIO,
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/* Minutiae Link Controls */
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LINK_TABLE_DIM,
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MAX_LINK_DIST,
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MIN_THETA_DIST,
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MAXTRANS,
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SCORE_THETA_NORM,
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SCORE_DIST_NORM,
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SCORE_DIST_WEIGHT,
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SCORE_NUMERATOR,
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/* False Minutiae Removal Controls */
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MAX_RMTEST_DIST,
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MAX_HOOK_LEN,
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MAX_HALF_LOOP,
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TRANS_DIR_PIX,
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SMALL_LOOP_LEN,
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SIDE_HALF_CONTOUR,
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INV_BLOCK_MARGIN,
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RM_VALID_NBR_MIN,
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UNUSED_INT, /* max_overlap_dist */
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UNUSED_INT, /* max_overlap_join_dist */
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UNUSED_INT, /* malformation_steps_1 */
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UNUSED_INT, /* malformation_steps_2 */
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UNUSED_DBL, /* min_malformation_ratio */
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UNUSED_INT, /* max_malformation_dist */
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PORES_TRANS_R,
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PORES_PERP_STEPS,
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PORES_STEPS_FWD,
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PORES_STEPS_BWD,
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PORES_MIN_DIST2,
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PORES_MAX_RATIO,
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/* Ridge Counting Controls */
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MAX_NBRS,
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MAX_RIDGE_STEPS
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};
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/* Allocate and initialize VERSION 2 global LFS parameters structure. */
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LFSPARMS lfsparms_V2 = {
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/* Image Controls */
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PAD_VALUE,
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JOIN_LINE_RADIUS,
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/* Map Controls */
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MAP_BLOCKSIZE_V2,
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MAP_WINDOWSIZE_V2,
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MAP_WINDOWOFFSET_V2,
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NUM_DIRECTIONS,
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START_DIR_ANGLE,
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RMV_VALID_NBR_MIN,
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DIR_STRENGTH_MIN,
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DIR_DISTANCE_MAX,
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SMTH_VALID_NBR_MIN,
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VORT_VALID_NBR_MIN,
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HIGHCURV_VORTICITY_MIN,
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HIGHCURV_CURVATURE_MIN,
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MIN_INTERPOLATE_NBRS,
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PERCENTILE_MIN_MAX,
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MIN_CONTRAST_DELTA,
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/* DFT Controls */
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NUM_DFT_WAVES,
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POWMAX_MIN,
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POWNORM_MIN,
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POWMAX_MAX,
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FORK_INTERVAL,
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FORK_PCT_POWMAX,
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FORK_PCT_POWNORM,
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/* Binarization Controls */
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DIRBIN_GRID_W,
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DIRBIN_GRID_H,
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UNUSED_INT, /* isobin_grid_dim */
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NUM_FILL_HOLES,
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/* Minutiae Detection Controls */
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MAX_MINUTIA_DELTA,
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MAX_HIGH_CURVE_THETA,
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HIGH_CURVE_HALF_CONTOUR,
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MIN_LOOP_LEN,
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MIN_LOOP_ASPECT_DIST,
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MIN_LOOP_ASPECT_RATIO,
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/* Minutiae Link Controls */
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UNUSED_INT, /* link_table_dim */
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UNUSED_INT, /* max_link_dist */
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UNUSED_INT, /* min_theta_dist */
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MAXTRANS, /* used for removing overlaps as well */
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UNUSED_DBL, /* score_theta_norm */
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UNUSED_DBL, /* score_dist_norm */
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UNUSED_DBL, /* score_dist_weight */
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UNUSED_DBL, /* score_numerator */
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/* False Minutiae Removal Controls */
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MAX_RMTEST_DIST_V2,
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MAX_HOOK_LEN_V2,
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MAX_HALF_LOOP_V2,
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TRANS_DIR_PIX_V2,
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SMALL_LOOP_LEN,
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SIDE_HALF_CONTOUR,
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INV_BLOCK_MARGIN_V2,
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RM_VALID_NBR_MIN,
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MAX_OVERLAP_DIST,
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MAX_OVERLAP_JOIN_DIST,
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MALFORMATION_STEPS_1,
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MALFORMATION_STEPS_2,
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MIN_MALFORMATION_RATIO,
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MAX_MALFORMATION_DIST,
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PORES_TRANS_R,
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PORES_PERP_STEPS,
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PORES_STEPS_FWD,
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PORES_STEPS_BWD,
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PORES_MIN_DIST2,
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PORES_MAX_RATIO,
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/* Ridge Counting Controls */
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MAX_NBRS,
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MAX_RIDGE_STEPS
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};
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/* Variables for conducting 8-connected neighbor analyses. */
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/* Pixel neighbor offsets: 0 1 2 3 4 5 6 7 */ /* 7 0 1 */
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int nbr8_dx[] = { 0, 1, 1, 1, 0,-1,-1,-1 }; /* 6 C 2 */
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int nbr8_dy[] = { -1,-1, 0, 1, 1, 1, 0,-1 }; /* 5 4 3 */
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/* The chain code lookup matrix for 8-connected neighbors. */
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/* Should put this in globals. */
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int chaincodes_nbr8[]={ 3, 2, 1,
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4,-1, 0,
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5, 6, 7};
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/* Global array of feature pixel pairs. */
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FEATURE_PATTERN feature_patterns[]=
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{{RIDGE_ENDING, /* a. Ridge Ending (appearing) */
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APPEARING,
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{0,0},
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{0,1},
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{0,0}},
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{RIDGE_ENDING, /* b. Ridge Ending (disappearing) */
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DISAPPEARING,
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{0,0},
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{1,0},
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{0,0}},
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{BIFURCATION, /* c. Bifurcation (disappearing) */
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DISAPPEARING,
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{1,1},
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{0,1},
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{1,1}},
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{BIFURCATION, /* d. Bifurcation (appearing) */
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APPEARING,
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{1,1},
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{1,0},
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{1,1}},
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{BIFURCATION, /* e. Bifurcation (disappearing) */
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DISAPPEARING,
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{1,0},
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{0,1},
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{1,1}},
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{BIFURCATION, /* f. Bifurcation (disappearing) */
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DISAPPEARING,
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{1,1},
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{0,1},
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{1,0}},
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{BIFURCATION, /* g. Bifurcation (appearing) */
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APPEARING,
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{1,1},
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{1,0},
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{0,1}},
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{BIFURCATION, /* h. Bifurcation (appearing) */
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APPEARING,
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{0,1},
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{1,0},
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{1,1}},
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{BIFURCATION, /* i. Bifurcation (disappearing) */
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DISAPPEARING,
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{1,0},
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{0,1},
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{1,0}},
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{BIFURCATION, /* j. Bifurcation (appearing) */
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APPEARING,
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{0,1},
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{1,0},
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{0,1}}};
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