upekux/nbis/libmindtct/results.c

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

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


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

      FILE:    RESULTS.C
      AUTHOR:  Michael D. Garris
      DATE:    03/16/1999
      UPDATED: 10/04/1999 Version 2 by MDG
               09/14/2004
      UPDATED: 03/16/2005 by MDG

      Contains routines useful in visualizing intermediate and final
      results when exercising the NIST Latent Fingerprint System (LFS).

***********************************************************************
               ROUTINES:
                        write_minutiae_XYTQ()

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

#include <stdio.h>
#include "lfs.h"

/*************************************************************************
**************************************************************************
#cat: write_minutiae_XYTQ - Write just minutiae XYT's & Qualities to text
#cat:                   file according to the specified mintuiae represenation

   Input:
      ofile    - output file name
      reptype  - specifies XYT output representation
      minutiae - structure containing a list of LFS detected minutiae
      iw         - width (in pixels) of the input image
      ih         - height (in pixels) of the input image
   Return Code:
      Zero     - successful completion
      Negative - system error
**************************************************************************/
int write_minutiae_XYTQ(char *ofile, const int reptype, const MINUTIAE *minutiae, const int iw, const int ih){
	FILE *fp;
	int i, ox, oy, ot, oq;
	MINUTIA *minutia;
	
	/*    A. If M1 flag set:                                 */
	/*       XYTQ's written according to M1 (ANSI INCITS     */
	/*          378-2004) representation:                    */
	/*       1. pixel coordinates with origin top-left       */
	/*       2. orientation in degrees on range [0..360]     */
	/*          with 0 pointing east and increasing counter  */
	/*          clockwise                                    */
	/*       3. direction pointing up the ridge ending or    */
	/*             bifurcaiton valley                        */
	/*       4. minutiae qualities on integer range [0..100] */
	/*             (non-standard)                            */
	/*                                                       */
	/*    B. If M1 flag NOT set:                             */
	/*       XYTQ's written according to NIST internal rep.  */
	/*       1. pixel coordinates with origin bottom-left    */
	/*       2. orientation in degrees on range [0..360]     */
	/*          with 0 pointing east and increasing counter  */
	/*          clockwise (same as M1)                       */
	/*       3. direction pointing out and away from the     */
	/*             ridge ending or bifurcation valley        */
	/*             (opposite direction from M1)              */
	/*       4. minutiae qualities on integer range [0..100] */
	/*             (non-standard)                            */
	
	if((fp = fopen(ofile, "wb")) == (FILE *)NULL){
		fprintf(stderr, "ERROR : write_minutiae_XYTQ : fopen : %s\n", ofile);
		return(-2);
	}
	
	for(i = 0; i < minutiae->num; i++){
		minutia = minutiae->list[i];
		
		switch(reptype){
			case M1_XYT_REP:
				lfs2m1_minutia_XYT(&ox, &oy, &ot, minutia);
				break;
			
			case NIST_INTERNAL_XYT_REP:
				lfs2nist_minutia_XYT(&ox, &oy, &ot, minutia, iw, ih);
				break;
			
			default:
				fprintf(stderr, "ERROR : write_minutiae_XYTQ : ");
				fprintf(stderr, "Invalid XYT representation type = %d\n", reptype);
				fclose(fp);
				return(-4);
			
		}
		
		oq = sround(minutia->reliability * 100.0);
		
		fprintf(fp, "%d %d %d %d\n", ox, oy, ot, oq);
	}
	
	
	if(fclose(fp)){
		fprintf(stderr, "ERROR : write_minutiae_XYTQ : fopen : %s\n", ofile);
		return(-5);
	}
	
	return(0);
}