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Originally Posted by mogui
I am not sure steg encoded files can be decoded visually. The data are buried in the jpg (or whatever) file in a non-visible way. That is what makes it hidden data. However the reported abstract picture that encodes a dense amount of data is attractive (visually and technologically), and could be the book cover. I wonder if they are unique for a given book.
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I didn't say they could. I was simply providing them as an example of a way of coding data in a visual image.
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I would like to see pBook publishers put some kind of encoded data in the pBook, so it could be read and put on my reader, whatever the reader may be in the future. I know, I know, it opens them up to piracy. But it would give us the best of both worlds.
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If you have a pbook, why bother? What sort of data would you have them encode? The text of the book?
That would founder in practical problems, like an inability to record it densely enough to make
decoding it in a reader a practical experience for the user. If you want to do that, you do what is currently done by things like computer books: you bind in a CD or DVD with the electronic content.
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How about putting an honesty drug in the drinking water?
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Define "honesty". I think you'll come up with enough different variants and edge cases depending upon who you talk to to provoke meditation on the multi-valued nature of language.
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Dennis