§By
using nearly identical colors, an image or message can be hidden in the
visual of the imagery.A
good example is the logo from the SNOW tool mentioned earlier:
•A good example of using slightly different colors to hide a message is
the logo for the SNOW tool we discussed earlier.
•Notice the ample amount of white-space above the word SNOW in the
logo.There is actually an image
hidden there.
•This is the image’s color table from Photoshop 7.Most digital image manipulation tools will
have something similar to view an images color palette.
•By looking at the color palette for the image, we can see there are
actually two separate white values with only a single bit difference (FFFFFF
& FFFFFE).The difference between
the two whites is indistinguishable to the human eye.
