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A PUBLIC MESH WATERMARKING ALGORITHM BASED ON ADDITION PROPERTY OF FOURIER TRANSFORM

LI LI

Computer Department, Hangzhou Dianzi University, Hangzhou 310018, PRC

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ZHIGENG PAN

State Key Lab of CAD&CG, Zhejiang University, Hangzhou 310027, PRC

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DAVID ZHANG

Center for Multimedia Signal Processing, and Department of Computing, Hong Kong Polytechnic University, Kowloon, Hong Kong, China

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https://doi.org/10.1142/S0219467806002070Cited by:3 (Source: Crossref)

Abstract

This paper presents a public mesh watermarking algorithm whereby the resultant watermarked image minus the original image is the watermark information. According to the addition property of the Fourier transform, a change of spatial domain will cause a change in the frequency domain. The watermark information is then scaled down and embedded in one part of the x-coordinate of the original mesh. Finally, the x-coordinate of the test mesh is amplified before extraction. Experimental results prove that our algorithm is resistant to a variety of attacks without the need for any preprocessing.

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