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Implement identification for imaging devices

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This commit is contained in:
Daniel Drake
2007-11-20 22:13:18 +00:00
parent 3f70d6f794
commit 69700855e2
5 changed files with 62 additions and 5 deletions
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19
libfprint/img.c
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@@ -364,6 +364,25 @@ int fpi_img_compare_print_data(struct fp_print_data *enrolled_print,
return r;
}
int fpi_img_compare_print_data_to_gallery(struct fp_print_data *print,
struct fp_print_data **gallery, int match_threshold, int *match_offset)
{
struct xyt_struct *pstruct = (struct xyt_struct *) print->data;
struct fp_print_data *gallery_print;
int probe_len = bozorth_probe_init(pstruct);
size_t i = 0;
while (gallery_print = gallery[i++]) {
struct xyt_struct *gstruct = (struct xyt_struct *) gallery_print->data;
int r = bozorth_to_gallery(probe_len, pstruct, gstruct);
if (r >= match_threshold) {
*match_offset = i - 1;
return FP_VERIFY_MATCH;
}
}
return FP_VERIFY_NO_MATCH;
}
/** \ingroup img
* Get a binarized form of a standardized scanned image. This is where the
* fingerprint image has been "enhanced" and is a set of pure black ridges