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Asked by dee koshy
on 24 Mar 2012

I have done pre processing of the fingerprint,and obtained upto the thinned image(each ridge is 1 pixel think).The crossing number algorithm for identifying ridge endings and bifurications is what I am aiming at,but I havent had any progress with my code.

Answer by Sivakumaran Chandrasekaran
on 24 Mar 2012

Hi deepthi, I think you can try to find the orientations

Regards, Siva siva@sdatech.in

## 1 Comment

## Harold

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/33326#comment_145574

I am doing some fingerprint analysis work and I was wondering what all do you do in the pre-processing phase? I came across a paper that does deletion of filling holes, redundant points, deleting noisy points, and filling in potential missing points. Unfortunately it doesn't go into any details code-wise. As such, I was hoping to find code for this and/or more detailed explanation on this phase.