On 09/20/2010 05:11, The Source wrote: > With enroll and verify I really wasn't getting 'try again', like you > said. Okay, the cause of this never-ending try-again messages comes from a bug in fprintd. I will report it. > But I wasn't able to get match either. Tried about 30 times, > re-enrolled a couple of times (deleting previous prints of cource), > no luck. I think you need to swipe your finger exactly the same way (angle of swipe, speed) as you enrolled it to have a chance to get a match. Even doing this, I often have to try again several times. My fingerprint sensor has a "guide" to keep the finger in correct position while swiping (see attached image). If yours doesn't, it may explain why you have such a hard time getting a match. Moreover, after swiping many times, fingers tend to become wet, which makes scan quality even worse. And unfortunately, the NBIS library used to match fingerprints in libfprint doesn't seem to have any image correction algorithm.
Regards. Hugo Grostabussiat
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