Extracting embedded information from digital image data

Details Extracting embedded information from digital image data Extracting embedded information from digital image data

2007-04-17

2007-04-17

Wu, Jingge (Department: 2624)

Image analysis

Applications

C713S176000, C382S190000

Reexamination Certificate

active

10933295

ABSTRACT:
The invention extracts third information, which includes first and second information, from image data. The first information (e.g., copyright information) is embedded in the image data using a public embedding method, and the second information (e.g., information used to detect if the copyright has been altered) is embedded in the image data using a private embedding method. The first information is then extracted from the third information using the second information.

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