I would imagine that many multi-function devices, with various software and a camera, would be able to do it. I don't think that any dedicated e-readers will ever have those functions, because it would mean moving into the realm of multi-function devices (and raising prices for the extra hardware and software).
Personally, I wouldn't want an e-reader I bought to have a camera integrated, because that would mean I paying a higher premium for a function that I would never use: I already have multiple devices that can capture images, and a few that can OCR if I wish.
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