[algogeeks] Re: FingerPrints recognition

Fri, 30 Jun 2006 06:11:11 -0700

I know this, but how to determinate data from it and what data use for comparing here is a problem, to scan image is easy. IMHO need to use neuro algos.


On 30/06/06, adak <[EMAIL PROTECTED]> wrote:

No.

But if I had to code one, I'd start with getting the program to scan
through the image and output data from it that can be compared with
other fingerprints. Seems a natural for a large 2D array to hold the
image data.

Your program would need a little "fudge factor" since the same finger
will give slightly different prints due to changes in weight, fluid,
and pressure exerted while being printed, medium used to record the
print, age, etc.

I wouldn't try to teach the computer about a fingerprint's
characteristics or anything like that. Just quickly have it read the
image into an array of numbers, after reading the pixel's values.

One problem would be to "normalize" the contrast of each print - even
if it's on different material or with older obsolete ink, etc.

Quite a project, imo.

Adak


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