Quote:
Originally Posted by Tickler
1. You can do color shifting to hide numbers, in an image. Pick some square areas, and bump the colors in that area a bit. Basically be almost invisable to the naked eye.
For a "0" = current color + 4*10
For a "1" = current color + 4*1
For a "2" = current color + 4*2
For a "3" = current color + 4*3
...
For a "8" = current color + 4*8
For a "9" = current color + 4*9
Then just do a "mask" comparison between the original and the encoded to reverse the calculation.
|
I'm a bit lost with that, maybe it's just because it's monday morning.
I'll read it again later and hopefully won't need it translating into idiot
