Daylight v4.9
Release Date: 1 February 2008


dt_fp_mindensity - retrieve the global minimum fingerprint density

Generic Prototype

dt_fp_mindensity(void) => dt_Real

C Prototype

#include "dt_finger.h"

dt_Real dt_fp_mindensity(void)

FORTRAN Prototype

include ''

real*4 dt_f_fp_mindensity()


This function is obsolete, as of version 4.42. The global minimum density value is only used by the obsolete functions dt_fp_fingerprint(), and dt_fp_fold().

Returns the global minimum fingerprint density. This value limits fingerprint folding. The density is calculated by dividing the number of 1's set by the total number of bits in the fingerprint. Attempts to fold a fingerprint whose density exceeds the minimum density will be silently ignored (see dt_fp_fold(3)).

Return Value

Returns a real containing the minimum density value.

Related Topics

dt_fp_fingertest(3) dt_fp_foldfp(3) dt_fp_setmindensity(3)