Camera Phones Read Hidden Messages in Print

pikine writes "As reported by BBC News, Fujitsu has developed a technology that encodes 12-bytes of information in a printed picture by skewing yellow hue, which is difficult to discern by human eye but fairly easy for camera phones to decode using software written in Java." The first target uses are promotional contests and competitions, not entirely unlike those game pieces that need to be viewed through a colored filter.

Comments

truthiness

[President_Camacho]

not entirely unlike those game pieces that need to be viewed through a colored filter

I believe these days, the correct term is African-American filter.

Re:truthiness

[Anonymous Coward]

not entirely unlike those game pieces that need to be viewed through a colored filter

I believe these days, the correct term is African-American filter.

Cut the politically correct bullshit. It's nigga filter.

Filter stole my bike!

Secret message

[StikyPad]

I've already found the hidden message. Actually, once I learned of the technique, I was surprised at just how many of these hidden messages exist.

****SPOILER WARNING****

01000010 01100101 00100000 01110011 01110101 01110010 01100101 00100000 01110100 01101111 00100000 01100100 01110010 01101001 01101110 01101011 00100000 01111001 01101111 01110101 01110010 00100000 01001111 01110110 01100001 01101100 01110100 01101001 01101110 01100101 00101110

Re:Secret message

[UnknownSoldier]

#include <stdio.h>
 
char m[] =
"01000010 01100101 00100000 01110011 01110101 01110010 01100101 00100000 01110100 01101111 00100000 01100100 01110010 01101001 01101110 01101011 00100000 01111001 01101111 01110101 01110010 00100000 01001111 01110110 01100001 01101100 01110100 01101001 01101110 01100101 00101110";
 
int main(int argc, char* argv[])
{
    int v = 0;
    char *p = m;
    while( *p )
    {
        if (*p == ' ')
        {
            printf( "%c", v );
            v = 0;
        }
        else
        {
            v <<= 1;
            v += ((*p == '0') ? 0 : 1);
        }
        p++;
    }
 
    return 0;
}

--
Unfortunately, Slashdot limits sigs to .120 characters. However, I was able to ingeniously circumvent this limitation by using a pseudo .sig !

There goes my business model

[alshithead]

I guess selling lemon juice for invisible ink has just been retired.

Where's Waldo?

[jlindy]

All that development money for a high tech version of Where's Waldo? O.K. So now for the obligatory... But I'm color blind you insensitive clods!

Re:Scary Tech

[mrogers]

That's why I always write ransom notes by hand, using my own blood.

Modding code as funny?...

[StressGuy]

Hey!...y-you guys are just a bunch of GEEKS!....all this time....I...I've been hanging out with GEEKS!!!

{...sniff...} and I thought I really was funny and insightful! {....sob!....}