This article is part of the series Emerging Applications of Multimedia Data Hiding.

Open Access Research Article

Multimedia Data Hiding and Authentication via Halftoning and Coordinate Projection

Chai Wah Wu

Author Affiliations

IBM Research Division, Thomas J.Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA

EURASIP Journal on Advances in Signal Processing 2002, 2002:634070  doi:10.1155/S1110865702000513


The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2002/2/634070


Received:4 May 2001
Revisions received:14 September 2001
Published:14 February 2002

© 2002 Wu

We present image data hiding and authentication schemes based on halftoning and coordinate projection. The proposed data hiding scheme can embed images of the same size and similar bit depth into the cover image and robustness against compression is demonstrated. The image authentication scheme is based on the data hiding scheme and can detect, localize, and repair the tampered area of the image. Furthermore, the self-repairing feature of the authentication scheme has a hologram-like quality; any portion of the image can be used to reconstruct the entire image, with a greater quality of reconstruction as the portion size increases.

Keywords:
data hiding; authentication; tamper detection; self-repairing images; error diffusion; digital halftoning; coordinate projection

Research Article