Apparatus for embedding and reproducing watermark into and...

Details Apparatus for embedding and reproducing watermark into and... Apparatus for embedding and reproducing watermark into and...

2011-06-14

2011-06-14

Le, Vu (Department: 2624)

Image analysis

Applications

C380S210000

Reexamination Certificate

active

07961904

ABSTRACT:
An apparatus for embedding a watermark into contents data includes a parameter converting device for converting a parameter of first contents data to generate second contents data. A mixing device operates for embedding parameter information into the second contents data as watermark information. The parameter information represents a condition of the conversion of the parameter by the parameter converting device. The watermark information may include copyright information.

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“A Copyright Information Embedding Method using DCT for Digital Movies” by H. Ogawa et al; The 1997 Symposium on Cryptography and Information Security—31G; pp. 1-4.
“A Watermarking scheme to image data by PN sequence” by J. Ohnishi; The 1997 Symposium in Cryptography and Information Security—26B; pp. 1-8.

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