Open Access

Multimedia Data Hiding and Authentication via Halftoning and Coordinate Projection

EURASIP Journal on Advances in Signal Processing20022002:634070

Received: 4 May 2001

Published: 14 February 2002


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.


data hidingauthenticationtamper detectionself-repairing imageserror diffusiondigital halftoningcoordinate projection

Authors’ Affiliations

IBM Research Division, Thomas J.Watson Research Center, Yorktown Heights, USA


© Wu 2002