A dual pyramid watermarking for JPEG-2000. (15th November 2007)

• Record Type: Journal Article
• Authors: Fan, Yu-Cheng; Tsao, Hen-Wai
• Is Part Of: International journal of high performance computing and networking. Volume 5:Number 1/2(2007)
• Page Start: 84
• Page End: 96
• Publication Date: 2007-11-15
• Subjects: fragile watermarks -- JPEG 2000 -- robust watermarks -- ROI -- regions of interest -- dual pyramid watermarking -- wavelets; High performance computing -- Periodicals; Computer networks -- Periodicals; High performance computing; Periodicals; 004.05
• Languages: English
• ISSNs: 1740-0562

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.