UNSPECIFIED (2004) Semi-fragile watermarking scheme for authentication of JPEG images. In: International Conference on Information Technology - Coding and Computing, APR 05-07, 2004, Las Vegas, NV.

Full text not available from this repository.

Abstract

With the increasing popularity of JPEG images, a need arises to devise effective watermarking techniques which consider JPEG compression as an acceptable manipulation. In this paper, we present a semi-fragile watermarking scheme which embeds a watermark in the quantized DCT domain. It is tolerant to JPEG compression to a pre-determined lowest quality factor, but is sensitive to all other malicious attacks, either in spatial or transform domains. Feature codes are extracted based on the relative sign and magnitudes of coefficients, and these are invariant due to an important property of JPEG compression. The employment of a nine-neighborhood mechanism ensures that non-deterministic block-wise dependence is achieved Analysis and experimental results are provided to support the effectiveness of the scheme.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TR Photography
Journal or Publication Title:	ITCC 2004: INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY: CODING AND COMPUTING, VOL 1, PROCEEDINGS
Publisher:	IEEE COMPUTER SOC
ISBN:	0-7695-2108-8
Editor:	Srimani, PK
Date:	2004
Number of Pages:	5
Page Range:	pp. 7-11
Publication Status:	Published
Title of Event:	International Conference on Information Technology - Coding and Computing
Location of Event:	Las Vegas, NV
Date(s) of Event:	APR 05-07, 2004
URI:	http://wrap.warwick.ac.uk/id/eprint/7683

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item