Digital watermark-embedding apparatus, digital...

Details Digital watermark-embedding apparatus, digital... Digital watermark-embedding apparatus, digital...

2007-03-06

2007-03-06

Wu, Jingge (Department: 2624)

Image analysis

Applications

C382S166000, C382S232000

Reexamination Certificate

active

10392192

ABSTRACT:
An input image is divided into local regions, each of which is formed by a macro block. An embedment intensity is determined for each of the local regions by using a calculated characteristic amount and a compression bit rate. Digital watermarks are embedded at the determined embedment intensity into the input image at each of the local regions thereof. The input image is encoded, thereby providing a compressed bit stream that has the digital watermarks embedded therein.

REFERENCES:
patent: 5396567 (1995-03-01), Jass
patent: 5809139 (1998-09-01), Girod et al.
patent: 6222932 (2001-04-01), Rao et al.
patent: 6229924 (2001-05-01), Rhoads et al.
patent: 7095870 (2006-08-01), Fukushima et al.
patent: 11-346302 (1999-12-01), None
patent: 2001-352441 (2001-12-01), None

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