Increased Robustness and Security of Digital Watermarking Using DS-CDMA

Author

Samee, Muhammad Kashif ; Götze, Jurgen

Author_Institution

Univ. of Dortmund, Dortmund

fYear

2007

fDate

15-18 Dec. 2007

Firstpage

185

Lastpage

189

Abstract

Digital Watermarking is a popular method for discouraging illicit copying of multimedia data. In this paper a blind, robust and secure watermarking technique based on DS-CDMA is presented. By using this technique a watermark can be extracted at very high PSNR value with very low BER. An adaptive approach is used to select the coefficients in the DCT domain, where the watermark is to hide. This significantly reduces BER. Multiple spreading codes can be used to make this scheme secure and more robust against JPEG compression, scaling and cropping.

Keywords

code division multiple access; data compression; discrete cosine transforms; error statistics; image coding; multimedia communication; orthogonal codes; telecommunication security; watermarking; BER; DCT domain; DS-CDMA; JPEG compression; PSNR value; adaptive approach; multimedia data illicit copying; multiple orthogonal spreading code; secure digital image watermarking; Bit error rate; Data security; Discrete cosine transforms; Information security; Multiaccess communication; Robustness; Signal processing algorithms; Spread spectrum communication; Transform coding; Watermarking; DCT; Image watermarking; JPEG compression; security; spreading codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2007 IEEE International Symposium on

Conference_Location

Giza

Print_ISBN

978-1-4244-1835-0

Electronic_ISBN

978-1-4244-1835-0

Type

conf

DOI

10.1109/ISSPIT.2007.4458072

Filename

4458072