Re: Perl Image Analysis

Maybe I'm just paranoid but this kind of sounds like a method that could possibly be used to defeat the "type the characters you see in the box on the right so we know you are human and not a bot". Please tell me I'm wrong here...

Jason L. Froebe

Team Sybase member

No one has seen what you have seen, and until that happens, we're all going to think that you're nuts. - Jack O'Neil, Stargate SG-1

Comment on Re: Perl Image Analysis

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Re^2: Perl Image Analysis by lparsons42 (Novice) on Oct 05, 2006 at 03:39 UTC
I honestly hadn't even considered that. I have a very different type of array that I am working with - similar to the affymetrix DNA microarrays (except its with proteins and its colorless). I'm not sure how well one could use this technique to find words in a pattern like that. Maybe if you knew what dictionary was used to generate the word (so you could check for feasibility) it might be useful for that. But being as the ones I've seen use upper and lowercase letters, and varied fonts at varied heights, I think that guessing letters could be fairly difficult.	[reply]
Re^2: Perl Image Analysis by talexb (Chancellor) on Oct 05, 2006 at 10:53 UTC
From the OP: I am working with (physical) array data, that is scanned in at 100 microns / pixel. You're wrong. :) Sounds like an electron microscope image to me, but then, I'm an engineer and not a scientist. Alex / talexb / Toronto "Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds	[reply]
Re^3: Perl Image Analysis by lparsons42 (Novice) on Oct 05, 2006 at 13:24 UTC
Actually, it is a scanner. Its a "Typhoon 9410" that can go to 10 microns per pixel in certain modes. The EM that we have here does much, much better than that. I suppose if I could coat a fly with fluorescent goo I could image it on this in the way that one could with an EM of this resolution :)	[reply]
Re^2: Perl Image Analysis by OverlordQ (Hermit) on Oct 05, 2006 at 14:29 UTC
Not really, There is alot of work involved with breaking captchas, simply finding grayscale is not going to help you at all.	[reply]
Re^2: Perl Image Analysis by Argel (Prior) on Oct 05, 2006 at 22:13 UTC
That thought crossed my mind but the large image size hinted at and the use of the TIFF image format quickly steered me towards bioinformatics.	[reply]