Image signal analysis for watermark detection and decoding

Details Image signal analysis for watermark detection and decoding Image signal analysis for watermark detection and decoding

2008-07-22

2008-07-22

Revak, Christopher (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C726S026000, C726S030000, C382S100000, C382S278000

Reexamination Certificate

active

09906071

ABSTRACT:
An image processing apparatus records an input image signal into another recording medium or displays the input image signal on a display device. When a digital image signal having superimposed thereupon an electronic watermark is input, an identification circuit identifies the method employed to superimpose the electronic watermark. A decode circuit decodes the electronic watermark by employing the electronic watermark superimposing method identified by the identification circuit.

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