A dual pyramid watermarking for JPEG-2000

Authors:
Yu-Cheng Fan;Hen-Wai Tsao
Affiliations:
Department of Electronic Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC.;Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan, ROC
Venue:
International Journal of High Performance Computing and Networking
Year:
2007

Citing 4
Cited 0

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Abstract

In this paper, we propose a dual pyramid watermarking method for JPEG-2000. The robust pyramid watermark is embedded into the host image by changing the wavelet coefficients according to the characteristics of wavelet transformation, regions of interest, and Embedded Block Coding with Optimised Truncation (EBCOT) to protect copyrights. The fragile pyramid watermark records the characteristics of the coefficients in the high-high band to detect slight changes and authenticate the owner of the images. Experimental results show that the proposed technique successfully survives JPEG-2000 compression, image cropping, pepper noise, scaling and rotation and can detect modification of the host image.