A Robust Multiple Watermarking Scheme for Still Image using DWT, DCT and Spread Spectrum

Wen Yuan Chen, Chin-Hsing Chen, Jzau Sheng Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the spread spectrum (SS) and discrete wavelet transform (DWT), discrete cosine transform (DCT) are used to construct a robust multiple image watermarking scheme. The wavelet decomposition algorithm subdivided the frequency of the host image into low-low, low-high, high-low, high-high frequency bands. However, the low-low frequency band is the most important band, because the energy of the image is concentrated within it. Further we let the low-low band transfer by DCT, then the watermarks bits stream modulated by SS are concealed into those coefficients of DCT block. Before embedding, the watermarks are chaotic by toral automorphism firstly then rearrange into bits stream. While the SS processing, the pseudo-random number (PN) sequence is employed to finish the job. From experiment results shown that our proposed scheme is robust, imperceptible, unambiguous, and non-removable under attacks such as JPEG lossy compression, cropping, rotation, painting, and resizing.

Original languageEnglish
Title of host publicationProceedings of the 6th Joint Conference on Information Sciences, JCIS 2002
EditorsJ.H. Caulfield, S.H. Chen, H.D. Cheng, R. Duro, J.H. Caufield, S.H. Chen, H.D. Cheng, R. Duro, V. Honavar
Pages668-671
Number of pages4
Publication statusPublished - 2002 Dec 1
EventProceedings of the 6th Joint Conference on Information Sciences, JCIS 2002 - Research Triange Park, NC, United States
Duration: 2002 Mar 82002 Mar 13

Publication series

NameProceedings of the Joint Conference on Information Sciences
Volume6

Other

OtherProceedings of the 6th Joint Conference on Information Sciences, JCIS 2002
CountryUnited States
CityResearch Triange Park, NC
Period02-03-0802-03-13

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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