Encoder and encoding method for electronic watermark,...

Details Encoder and encoding method for electronic watermark,... Encoder and encoding method for electronic watermark,...

2007-05-01

2007-05-01

Bali, Vikkram (Department: 2624)

Image analysis

Applications

C713S176000

Reexamination Certificate

active

10272857

ABSTRACT:
Disclosed is an encoder for forming electronic watermark information which allows detecting tampering of a digital content based on an electronic watermark embedded in the digital content, and limiting said tampered part. This encoder comprises means for dividing a subject digital content into multiple blocks, and means for independently forming the electronic watermark information in the individual blocks.

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