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An efficient digital image-in-image watermarking algorithm using the integer discrete cosine transform (IntDCT)

Zhang, Jing and Ho, Anthony T. S. (2003) An efficient digital image-in-image watermarking algorithm using the integer discrete cosine transform (IntDCT) In: Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint.

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Abstract

In this paper, a robust and efficient watermarking algorithm is proposed for copyright protection of digital images. The proposed algorithm can also be extended to video sequences. Based on Ho et al.'s image-in-image watermarking algorithm A.T.S. Ho, et al. (2002), the proposed algorithm uses an integer discrete cosine transform (IntDCT) (2003). It is based on the IntDCT transform used in the state-of-the-art video compression standard H.264 (2002), rather than the conventional DCT used in the prior video standards. The most significant advantage of this transform is that it is free from any floating-point or fixed-point multiplication required by the original DCT and all operations can be carried out with integer arithmetic, without loss of accuracy. The proposed algorithm can embed a small image such as a company's trademark into the original cover images. The algorithm's performance is evaluated using StirMark 4.0. Experimental results show that this proposed algorithm can survive attacks such as scaling, additive noise, line removal as well as JPEG compression. The simplicity of the integer DCT transform also offers a significant advantage in shorter processing time and ease of hardware implementation than commonly used DCT techniques.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: This article was published when Anthony T. S. Ho was at Nanyang Technological University, Singapore. In Proceedings of the 2003 Joint Conference of the Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. , Vol. 2, pp. 1163- 1167 .© 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:46
Last Modified: 23 Sep 2013 18:36
URI: http://epubs.surrey.ac.uk/id/eprint/1943

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