posted on Aug, 9 2008 @ 01:05 PM
Has anyone tried a steganographic approach to this problem yet? If not, I will attempt to do so. I have written several steganographic libraries
(specialized - so it will take some time to alter them for this puzzle).
For the uninitiated: Steganography is the art of hiding information in the least significant bit in an image. Thus, hexadecimal will
tell you nothing as each hexadecimal number represents 16 bits and thus could be extremely misleading (I'm only mentioning this since if
steganography was in fact used, hex is the wrong approach - it is like looking for viruses in a microscope with the magnification set a couple orders
or magnitude too high to see the salient features you are looking for). You need to look at the binary representation of the image and see if there
are slight variations in the least significant digit. This way - the colors look the same and are unable to be distinguished from a pure color that
is one bit different from the neighboring color with a bit flipped another direction. Plus - being a color image - a stegonographic message might
often use all three fields (red, green and blue -or- in print cyan, magenta, yellow and black) in order to hide three or four bits of information per
pixel. In this way, one can put more data per pixel in each individual pixel. And this is a color image.
This is a common way for terrorists (and government's) to transmit data right in front of your eyes. If this has already been attempted (although I
could not find mention of it with a quick search) then I apologize for the repeat information.
Let me know if you would like me to attempt to do a steganographic analysis on this image.
Finally - it should be noted that many of you have cut off what is potentially part of the message - it appears to the eye to be black, but in fact is
not, thus the image information extends beyond many of the images that I have seen in this thread. That might lend a clue to this problem.
EDIT to add: Or is this problem effectively solved?
[edit on 9-8-08 by WoodyAcres]