TIN EYE - How does it work??

[fmahovalich]

I am trying to understand the technology.

Is the jpg embedded with some sort of signature.....

or how does one search ONE PICTURE.....and is successful finding it on the WWW??

 

[Ceiling Cat]

Photos use to be on film ( dark ages - before computers ) Now photos are digital, a computer sees binary numbers ( only 1 s and 0 s ) A photo is made of millions of 1 s and 0 s. Your computer translates these 1 s and 0 s into pixels and arranges them so that you can see a photo on your screen. Being that each photos is a unique arrangement of 1 s and 0 s, each photo has a unique signature or finger print. Tin Eye searches the internet for photos with the same digital signature and shows it to you.

 

[rafterman]

Thx, that's interesting I always wondered how it worked myself, never actually used it but it's a useful tool for busting scammers on CL etc.

 

[Mazinga]

Thx, that's interesting I always wondered how it worked myself, never actually used it but it's a useful tool for busting scammers on CL etc.

What happens if the pic is cropped from the top? The pictures signature would start differently.

 

[Ceiling Cat]

There are ways to fool the system, but with millions of pixels and millions ( or hundreds of millions ) of binary numbers in a photo, simple modification is not enough to fool the system. There is still enough of a signature on the photo to match it up. Example : If I know you and and see half a photo of your face I could still recognize you, I may even still recognized that it is you from a quarter of a photo. I might not recognized it is your photo if I just see an ear or nose. A computer is much better at recognizing part of a photo, but there is a point where there is just not enough information for it to work on. Tin eye is a very simple photo recognition system. There are professional photo recognition companies that track copyright photos so that the owners are paid a royalty on the photo.

 

[Master_Bates]

There are 10 kinds of people in this world, those that understand binary and those that don't

 

[serviceman]

On a similar topic, how does the Shazam app for the iphone work?

It takes a 10 or 20 second excerpt of a song and identifies it, but it's super fast, and works even if the source is muffled or distorted. I've used it in crowded stores when I like the music they're playing, and it always works for me.

 

[mmouse]

I heard they do this using computers. It's amazing.

 

[JEFF247]

I just ran this girl that I saw on Syracuse, NY Craigslist.

45 Results. I've had mixed results. She wants you to call a 702 (Vegas) phone Number.

http://syracuse.craigslist.org/ads/1849082554.html

 

[Noir@heart]

This one is on Toronto and Atlanta but no tineye hits

 

[Noir@heart]

Yes, free time on my hands today. I guess they have to be using the exact same picture...DUHH!!!!!

 

[JEFF247]

I just ran this girl that I saw on Syracuse, NY Craigslist.

45 Results. I've had mixed results. She wants you to call a 702 (Vegas) phone Number.

http://syracuse.craigslist.org/ads/1849082554.html

I was hopin this would be the exception.

 

[Yarmon]

There are 10 kinds of people in this world, those that understand binary and those that don't

Very good!

 

[T.O.tourist]

There are 10 kinds of people in this world, those that understand binary and those that don't

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