WaveMark: digital image watermaking using Daubechies' wavelets and error-correcting coding

James Ze Wang; Gio Wiederhold

doi:10.1117/12.337433

22 January 1999 WaveMark: digital image watermaking using Daubechies' wavelets and error-correcting coding

James Ze Wang, Gio Wiederhold

Proceedings Volume 3528, Multimedia Systems and Applications; (1999) https://doi.org/10.1117/12.337433
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

As more and more digital images are distributed on-line via the Internet and WWW, many copyright owners are concerned about protecting the copyright of digital images. This paper describes WaveMark, a novel wavelet-based multiresolution digital watermarking system for color images. The algorithm in WaveMark uses discrete wavelet transforms and error- correcting coding schemes to provide robust watermarking of digital images. Unlike other wavelet-based algorithms, our watermark recovery procedure does not require a match with an uncorrupted original image. Our algorithm uses Daubechies' advanced wavelets and extended Hamming codes to deal with problems associated with JPEG compression and random additive noise. In addition, the algorithm is able to sustain intentional disturbances introduced by professional robustness testing programs such as StirMark. The use of Daubechies' advanced wavelets makes the watermarked images more perceptively faithful than the images watermarked with the Haar wavelet transform. The watermark is adaptively applied to different areas of the image, based on the smoothness of the areas, to increase robustness within the limits of perception. The system is practical for real-world applications, encoding or decoding images at the speed of less than one second each on a Pentium Pro PC.

Citation Download Citation

James Ze Wang and Gio Wiederhold "WaveMark: digital image watermaking using Daubechies' wavelets and error-correcting coding", Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); https://doi.org/10.1117/12.337433

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