How to set lbph threshold

local-binary-pattern

asked 2017-06-11 23:39:07 -0600

I am trying to match a given face with a database of faces using lbph face recognition algorithm i have read all the related questions but could not find a way to set or calculate appropriate threshold value to get the result weather face is matched or not matched.

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answered 2017-06-12 00:03:31 -0600

berak
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updated 2017-06-12 00:06:01 -0600

you can set the threshold value from the create function, e.g.here

to find a good number there, you have to experiment, collect the confidence values from predict() for a few "same" and "not-same" person values, and pick a value between the worst "same" and the best "not-same" confidence (which is actually a distance, so smaller==better)