help needed to unwrap the iris pattern..

[sabiha]

i am doing a project on iris recognition system..and i need help in how to convert the circular shape of iris to the rectangular(cartesian to polar i guess)

need help kindly help if someone knows abt it..

i am sure many of u know abt it

thnx

[Mike Ashe]

i am doing a project on iris recognition system..and i need help in how to convert the circular shape of iris to the rectangular(cartesian to polar i guess)

need help kindly help if someone knows abt it..

i am sure many of u know abt it

thnx

Another One Hit Wonder Homework Hustler ! (OHWHH)

Normal practice here on the forum has been to quickly roast such newbie's, but my coffee was pretty good this morning and I'm about to go for my second cup, so I'll be kind

NI makes a vision toolkit that has a VI in it that does what you what. It is the IMAQ Vision Toolkit. I assume that since you are working IRIS recognition in LabVIEW that you already have the toolkit. The workstation that I am on at the moment does not have that Toolkit, but if you have it I suggest that you go through the palettes very slowly from start to finish til you find it.

I believe it is called something like "IMAQ - Unwrap Meter.vi" or something like that. It is used to unwrap a portion of a circular annulus, before useing OCR to read numbers off of a meter. Seems like I recall someone else working on something like this here on the forums before. So try to search the forums here for appropriate keyworks.

Lastly, why don't you post a VI showing us what you have already tried and explain what troubles you are still having. Then we can offer specific advice.

(Okay, for the regulars, I know, I know, I'm breaking my own rules here, "don't feed the bears", but the java was rich today...)

[LAVA 1.0 Content]

Either a group project due, or bad form by creating multiple new accounts (both one-hit wonders...)

See this thread...

Homework Hustlers (plural?!)...