30 August 2002 Watermarking experiments based on wavelet transforms
Author Affiliations +
This paper proposes a watermark, W, a set of independent and identically distributed Gaussian pseudo random signals, which is embedded into the coeÆcients of the high-low band and ?W is embedded into those of the low-high band at level 3 in a 3-scale wavelet transform. A watermark generation, insertion, extraction, and veri cation after a variety of attacks via image operations such as scaling, smoothing, cropping, noise adding, JPEG, SPIHT, and fractal compression, are demonstrated by using Haar and Daubechies' four wavelet transforms on the image Lenna. Experiments reporting the PSNR value of each attacked image with its corresponding detected level show that the proposed watermarking strategy is promising.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chaur-Chin Chen, Chaur-Chin Chen, } "Watermarking experiments based on wavelet transforms", Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); doi: 10.1117/12.481564; https://doi.org/10.1117/12.481564


Elliptic curve cryptographic watermark technique
Proceedings of SPIE (September 25 2003)
Survey of wavelet-domain watermarking algorithms
Proceedings of SPIE (August 01 2001)
ICA-based robust logo image watermarking
Proceedings of SPIE (June 22 2004)
Digital watermarking based on self-similarity in DWT of image
Proceedings of SPIE (September 26 2001)
Practical approach to fractal-based image compression
Proceedings of SPIE (November 01 1991)

Back to Top