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How can I extract sweat pores from a 1000 dpi fingerprint image using difference of Guassian approach?

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researcher
researcher 2015-3-11
评论： researcher 2015-3-12
I am working on a fingerprint recognition system, I need to extract pores which are present in the ridges.During my research I read that a blob detection technique can separate the pores from the ridges.However when I am applying a Gaussian Filter, it is smoothing the image. Also the DoG results in another similar image. If this is the right approach then where am I going wrong?

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Image Analyst
Image Analyst 2015-3-11
Well, you're using the wrong sigmas. Put them into a loop over a bunch of values and save the images and see what combination gives you the best image. I attach my DoG filter but with R2015a there is a new imgaussfilt() function that you can use.
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