Find a file
0xCoDSnet 77e20b538e focaltech_moh: switch to custom NCC matching for verification
NBIS/bozorth3 cannot reliably detect minutiae at the sensor's
native resolution (64x80 pixels, ~250 DPI vs 500 DPI required).
The Windows driver solves this with a proprietary "mayflower"
matching engine.

Replace FpImageDevice (NBIS-based) with FpDevice implementing
custom pixel-correlation matching:

- Preprocessing: bitwise NOT + local mean subtraction (7x7
  high-pass filter) to enhance ridge/valley contrast
- Enrollment: store 5 preprocessed images as GVariant templates
- Verification: Normalized Cross-Correlation (NCC) with
  translation search (±3 pixels, 49 positions per template)
- NCC threshold: 0.30 (same finger: 0.31-0.47, different: 0.05-0.29)

Tested with fprintd-enroll, fprintd-verify, and GNOME lock screen.
2026-03-15 15:45:36 +04:00
.ci ci: Add ABI check 2019-08-05 20:05:13 +02:00
.gitlab-ci ci: Add PyGObject symbols 2026-02-10 06:33:00 +01:00
data focaltech_moc: add new pid:0x077A pid:0x079A 2026-02-12 17:09:41 +08:00
demo scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
doc build: Stop using deprecated dep.get_pkgconfig_variable() method 2024-02-20 01:02:00 +01:00
examples examples/clear-storage: Remove local storage for devices without storage 2025-02-20 16:37:11 +01:00
libfprint focaltech_moh: switch to custom NCC matching for verification 2026-03-15 15:45:36 +04:00
scripts scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
tests tests/valgrind-python.supp: Ignore PyGObject leaks 2026-02-10 06:33:00 +01:00
.git-blame-ignore-revs .git-blame-ignore-revs: Ignore formatting commit and add hint how to use it 2020-12-07 19:01:10 +01:00
.gitignore gitignore: Remove autotools ignores, add _build 2020-02-10 11:41:40 +01:00
.gitlab-ci.yml ci: Make jobs interrumpible 2026-02-10 06:35:26 +01:00
AUTHORS AUTHORS: Update 2012-12-14 13:17:24 +01:00
code-of-conduct.md Add code of conduct document 2019-07-25 12:04:39 +02:00
COPYING upekts relicensing 2007-11-15 09:54:35 +00:00
gcovr.cfg gcovr: Add gcovr project configuration 2025-08-01 01:42:01 +02:00
HACKING.md HACKING: Clarify the intent of the license 2019-08-05 13:37:28 +02:00
INSTALL INSTALL: Update for Meson 2018-05-18 01:16:30 +02:00
MAINTAINERS Add MAINTAINERS file 2020-05-22 15:00:11 +02:00
meson.build Add FocalTech FT9201 fingerprint sensor driver 2026-03-12 21:14:33 +04:00
meson_options.txt tests: Add support for installed tests 2023-06-28 16:35:16 +02:00
NEWS Release 1.94.10 2026-02-10 03:18:14 +01:00
README.md README: Add contact information 2024-05-03 15:35:11 +02:00
THANKS Thanks to Greg and Martin from AuthenTec 2012-11-29 09:51:55 +01:00

LibFPrint

LibFPrint is part of the FPrint project.


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History

LibFPrint was originally developed as part of an academic project at the University Of Manchester.

It aimed to hide the differences between consumer fingerprint scanners and provide a single uniform API to application developers.

Goal

The ultimate goal of the FPrint project is to make fingerprint scanners widely and easily usable under common Linux environments.

License

Section 6 of the license states that for compiled works that use this library, such works must include LibFPrint copyright notices alongside the copyright notices for the other parts of the work.

LibFPrint includes code from NIST's NBIS software distribution.

We include Bozorth3 from the US Export Controlled distribution, which we have determined to be fine being shipped in an open source project.

Get in touch

  • IRC - #fprint @ irc.oftc.net
  • Matrix - #fprint:matrix.org bridged to the IRC channel
  • MailingList - low traffic, not much used these days

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