Image printing device, verifying device, and printed material

Details Image printing device, verifying device, and printed material Image printing device, verifying device, and printed material

2011-02-01

2011-02-01

Parthasarathy, Pramila (Department: 2436)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S168000

Reexamination Certificate

active

07882347

ABSTRACT:
An image is split into a plurality of blocks, a feature quantity is extracted from each of the blocks, data is embedded into each of the blocks based on a difference between feature quantities of that block and at least one adjacent block, and data embedded blocks are printed.

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