Dynamic Fingerprint Preprocesssing Technique

What is it about?

A fingerprint preprocessing technique is proposed for contrast enhancement of poor quality fingerprints, prior to orientation field estimation. It improves the visibility of ridges by binarization.

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Why is it important?

First, the proposed technique, reliably, extracts ridges in large regions of low quality. Second, it does not require a segmentation algorithm to separate fingerprint region from unclear background.