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Handwritten Signature SDK was developed by Luciano Giuseppe for a thesis in computer science at Prof. Cattaneo - Digital Forensics - University of Salerno.
This project borns because of need to use a fairly complete and free SDK to work on handwritten signature.

SDK is based on signature-verification project and uses JPen to get pressure from a pen tablet.
It implements many know algorithms: DTW and ER2, and others developed reading scientific articles and with my ideas, as you can see:

• Dynamic time warping with Sakoe-Chiba band.
• Extended Regression in 2 dimensions.
• Signature sampling by points coords and not on an image.
• Directional Hash: generate an hash from signature according to X and Y movements.
• Signature rotation by barycenter: this technique is to be test more, but it works if signatures are similar.
• Methods to extract: velocity, pression, internal and external angles and critical points.

How to run the jar (last jar is in version 0.4):
java -Djava.library.path=signatureSDK_lib -jar signatureSDK.jar

How to use with Android

Project updates

An example app

Project Admins:

• LucianoGiuseppe