/******************************************************************************* License: This software was developed at the National Institute of Standards and Technology (NIST) by employees of the Federal Government in the course of their official duties. Pursuant to title 17 Section 105 of the United States Code, this software is not subject to copyright protection and is in the public domain. NIST assumes no responsibility whatsoever for its use by other parties, and makes no guarantees, expressed or implied, about its quality, reliability, or any other characteristic. Disclaimer: This software was developed to promote biometric standards and biometric technology testing for the Federal Government in accordance with the USA PATRIOT Act and the Enhanced Border Security and Visa Entry Reform Act. Specific hardware and software products identified in this software were used in order to perform the software development. In no case does such identification imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the products and equipment identified are necessarily the best available for the purpose. *******************************************************************************/ /*********************************************************************** 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 /*************************************************************************/ /* 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}}};