Hello Igor,
where do I get the fprint_demo tool from? I failed to find it. The overall image looks alright, but still not very good - I attached an image of mine. I made a really careful swipe and now it detects my finger in about 50% of the cases - still not very good, but I guess I'll just need some practice. Kind regards Timo > Igor Filatov <ia.fila...@gmail.com> hat am 28. Januar 2018 um 09:55 > geschrieben: > > 1 out of 10 isn't practical so it shouldn't be like that. I'm getting > roughly 4 OKs out of 5 (which is still somewhat low and can be attributed to > the quality if images the scanner produces with swiping; I also have a > Validity sensor and it blows my Elan out of the water). > > 1. Try to get some visual feedback. There's a tool called fprint_demo. > You can enroll and verify there. It shows images and detected minutiae. There > aren't any good guidelines but in general try and see if the overall image > looks good. Areas where the frames intersect should look as seamless as > possible (seams produce false minutiae). The number of detected minutiae > should be at least over 30. If possible, please send images you get with > examples/img_capture. Which finger you scan doesn't matter (you can use > someone else's if you still happen to have one from Halloween). > > 2. These Elans need a slower and steadier swipe than dedicated swipe fp > readers. I mean the ones that were built for swipe. I think it takes me about > 3 seconds to do a swipe. Pay attention to the tip of the finger: because the > tip is curved it's hard to assemble a good image of it. I must say it does > take some practice... > > On Sun, Jan 28, 2018 at 2:25 AM wp12880529-timo wp12880529-timo < > t...@teemze.de mailto:t...@teemze.de > wrote: > > > > > > Hi, > > > > > > the enroll process seems to work. However, when verifying it > > detects my finger in about 1 out of 10 tries. Is this a bug or is it normal? > > > > > > Regards > > > > Timo > > > > > > > Igor Filatov < ia.fila...@gmail.com > > mailto:ia.fila...@gmail.com > hat am 27. Januar 2018 um 18:52 geschrieben: > > > > > > > > > > > > > Yes, this time it worked. First of all, you > > should be able to open finger.pgm in the same directory with an image > > viewer and see your finger. Then you can try exmaples/enroll and > > examples/verify to enroll and verify your fingerprint. If everything seems > > ok, install the driver with `sudo make install`. You will need fprintd > > daemon and a PAM module for login, sudo etc. On Debian/Ubuntu it's just > > `apt install libpam-fprintd`. Once it's installed, run `fprintd-enroll`. > > That's it. > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > fprint mailing list > > > fprint@lists.freedesktop.org > > > mailto:fprint@lists.freedesktop.org > > > > > > > > > > > > > https://lists.freedesktop.org/mailman/listinfo/fprint > > > > > > > > > > >
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