General discussions : General : Invisible ads that only your Mobile phone can see
>
New Topic
>
Reply<
Esato Forum Index
>
General discussions >
General
> Invisible ads that only your Mobile phone can see
Bookmark topic
A technology that can "hide" information in plain sight on printed images has begun to see the first commercial applications.
ESATO NEWS
Japanese firm Fujitsu is pushing a technology that can encode data into a picture that is invisible to the human eye but can be decoded by a mobile phone with a camera
The technique stems from a 2,500-year-old practice called steganography, which saw the Greeks sending warnings of attacks on wooden tablets and then covering them in wax and tattooing messages on shaved heads that were then covered by the regrowth of hair.
Fujitsu's technique works by taking advantage of the sensitivities of the human eye, which struggles to see the colour yellow.
A camera is perfectly sensitive to that yellow hue but the human eye doesn't see it very well. Any camera, even those in mobile phones, can decode it very easily."
Pictures printed with the technique look perfectly normal but a camera can see the code printed into the image.
--
Posted: 2007-02-19 15:38:25
Edit :
Quote
lol imagine what we could hide on pics...on exams
--
Posted: 2007-02-25 21:54:11
Edit :
Quote
True...i didn't think of that!
i suppose people could misuse this for this type of thing!
--
Posted: 2007-02-25 22:37:27
Edit :
Quote
The only thing i can see this will be useful for is big companies putting copyrights all over images. Imagine seeing an image of a new car, for example, and thinking "ooh, id like a picture of that!" So you reach for your phone and take a snap only to have "copyright honda" all over it. On a positive note though, artists could use it to protect their work. (p.s. while I was writing this, one of my chinchillas took a sizable chunk out of my p900!)
This message was posted from a P900
--
Posted: 2007-02-25 23:11:07
Edit :
Quote
New Topic
Reply
