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Subject: Re: Matlab code for orientation field estimation algorithm for a fingerprint image
Date: Sun, 7 Nov 2010 06:38:03 +0000 (UTC)
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abhijeet_chakote@rediffmail.com (Abhijeet) wrote in message <wezx0d2zo2n6@legacy>...
> Hello,
> 
> This is my first time to ask the question on this mathforum.
> I am not getting how to implement the orientation field estimation
> algorithm for a fingerprint image.
> 
> First we have to divide the input fingerprint image into blocks of
> size 10*10.
> 
> then compute the gradients Gx and Gy at each pixel in each block.
> (do not use the gradient function in matlab)
> 
> I anybody help me for these two setps only.
> 
> You can send me code on abhijeet_chakote@rediffmail.com
> Thanks
> 

You can look at my code:

http://www.mathworks.com/matlabcentral/fileexchange/29280-fingerprint-matching-algorithm-using-shape-context-and-orientation-descriptors

I use orientation estimation (global orientation image) for one of my descriptors.