Cart (Loading....) | Create Account
Close category search window
 

Robustness Enhancement of Quantization-Based Image Watermarking by Preserving Local Spatial Characteristics

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Jun-Horng Chen ; Dept. of Commun. Eng., Oriental Inst. of Technol., Taipei

This work proposes that, in quantization-based watermarking, the watermark message can be embedded in the Census directions to improve the robustness performance while resisting the block-wise attacks, e.g. JPEG compression. Experimental results indicate the capability of resisting the block- wise attacks can not rival that of resisting the pixel-wise attacks because the local spatial characteristics might be destroyed by the embedding procedure such that the embedded watermark is vulnerable to block-wise attacks. Since the Census transform of an image remains unchanged when the image is distorted by various manipulations, the proposed approach embeds the watermark message in the Census directions to preserve the local spatial characteristics. Simulation results will show the proposed approach indeed improves the robustness performance in withstanding the JPEG compression. Besides, the proposed approach will modify the Census transform so that the watermark extracting process can have almost the same Census directions as the embedding process. Therefore, the side information could be reduced, which makes the proposed approach more applicable.

Published in:

Wireless Communications and Mobile Computing Conference, 2008. IWCMC '08. International

Date of Conference:

6-8 Aug. 2008

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.