A New Algorithm for Watermarking Colour Images Using the Green Channel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this paper a new blind technique using one dimensional Walsh coding to improve the robustness of image watermarking is presented. The algorithm uses 1-D Walsh coding to embed mobile phone digits in color images captured by a still image camera. The new technique inserts the coded binary bits of the phone digits in the discrete cosine transform (DCT) blocks of the green channel of the digital color image. The use of the green channel produced better results compared to the previous DCT algorithms using the Y-Channel. Also, the Walsh coding has improved robustness against JPEG compression, cropping and some filtering attacks.

Bibliographical metadata

Original languageEnglish
Title of host publicationNetworked Digital Technologies- 4th International Conference, NDT 2012, Proceedings
Number of pages10
Volume294 PART 2
Publication statusPublished - 2012
Event4th International Conference on Networked Digital Technologies, NDT 2012 - Dubai, United Arab Emirates
Event duration: 24 Apr 201226 Apr 2012

Publication series

NameCommunications in Computer and Information Science
Volume294 PART 2
ISSN (Print)18650929


Conference4th International Conference on Networked Digital Technologies, NDT 2012
CountryUnited Arab Emirates