06430302 is referenced by 177 patents and cites 31 patents.

Multi-bit auxiliary information is hidden in imagery (e.g., digital photographs, video), using steganographic techniques. Such information can be used for various purposes, including identifying imagery as originating from a particular source, copy control, etc. In some embodiments, one image is encoded using data that is dependent on a second image.

Title
Steganographically encoding a first image in accordance with a second image
Application Number
9/758531
Publication Number
6430302 (B2)
Application Date
January 10, 2001
Publication Date
August 6, 2002
Inventor
Geoffrey B Rhoads
West Linn
OR, US
Agent
Digimarc Corporation
US
Agent
William Y Conwell
US
Assignee
Digimarc Corporation
OR, US
IPC
H04K 1/00
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