graphical based Authentication

[noadek]

I'm working on a project graphical based authentication and i need to implement this with
C++. I need to understand this concept and all the books i ve read, none has really explained it well. Please I need help and badly.

[VernonDozier]

Too vague. What are you trying to authenticate? Are there user accounts and you are checking user names and passwords? Asking the user questions he/she should know and checking them against a database? Something different?

[noadek]

I'm trying to authenticate basically images, fingerprints. My application should be able to match to images that are alike.

[Salem]

Gotta love the internet, you should try it sometime.
http://biometrics.cse.msu.edu/fingerprint.html