US 6,879,701 · Granted 2005-04-12
Tile-based digital watermarking techniques
A tile-based arrangement is employed to effect watermarking of plural-bit auxiliary data into still or moving digital images. In a particular embodiment, the plural-bit auxiliary data is represented as a rectangular block of overlay data. This block is repetitively tiled, both vertically and horizontally, across the image, and combined with the image data to effect the encoding.
Patent details
- Publication number
- US 6,879,701
- Filing date
- 1999-09-29
- Grant date
- 2005-04-12
- Assignee
- Digimarc Corporation
- Inventor(s)
- RHOADS GEOFFREY B.
- CPC class
- G06K7/14
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