Page 1 of 1
signature authentication
Posted: Fri Jan 02, 2004 5:39 am
by itsmani1
hello every one.....
Friends i am working on a webportal where the authentification of the user will not be done just my user name and password but you has to enter his/her scanned signatures for the user authentication. Wot i want is that if any one can help me and tell me some functions that PHP supports for authentication purpose...........
Note:-
first of all signature of the user will be submitted to the portal and when the user will come to use the portal user will hav to give it's user name along with his/her scanned signatures
Regardsssss
Posted: Fri Jan 02, 2004 5:50 am
by itsmani1
Plz help me if U can
it's really very important to meeeeeeee
Posted: Fri Jan 02, 2004 6:41 am
by m3mn0n
I think that is a little beyond PHP but I could be wrong, I'm not really an expert within the image manipulation area of PHP.
Let me clarify this; A user will be uploading an image with a scanned signature on it? And you want a function that will match the signature uploading to one within the records for that user? hmm. I don't know of a standard PHP function that does that. If it is possible within PHP, you'll need to create your own function.
Have you thought about just storing the image into a DB and having a staff member of the site review the signatures? It's a more simple and, IMO, better way to do this.
Posted: Fri Jan 02, 2004 6:51 am
by itsmani1
One thing i donot know that is it "signature authentication" or "template matching" because when your signature will be in the shape of image it cam be called a template.
Posted: Fri Jan 02, 2004 6:58 am
by m3mn0n
I don't know about everyone else but, I never write the exact same signature twice. There is always a slight variation within the letters, or swirls that I add to it. So having a computer program match them might not be so good.
Posted: Fri Jan 02, 2004 7:04 am
by itsmani1
Wel i know that it;s very defficult to write same signatures but there will be an error margin of about 15% and remaining in that errer margin signatures will be checked........
got the point
Posted: Fri Jan 02, 2004 7:08 am
by m3mn0n
Sounds like a very complicated php program indeed.
Hopefully someone here who is very fluent with image manipulation/detection will provide a good link.
Regards.
Posted: Fri Jan 02, 2004 8:24 am
by itsmani1
Any way thanks for ur time
Regards