Title :
A public mesh watermarking algorithm based on addition property of Fourier transform
Author :
Li, Li ; Pan, Zhigeng ; David Zhang
Author_Institution :
Hangzhou Dianzi Univ., China
Abstract :
This paper presents a public mesh watermarking algorithm. First, 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. Then, the watermark information is 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.
Keywords :
Fourier transforms; feature extraction; image coding; watermarking; Fourier transform; frequency domain; public mesh watermarking algorithm; spatial domain; watermarked image; Data mining; Electronic mail; Equations; Fourier transforms; Frequency domain analysis; Noise robustness; Partitioning algorithms; Signal processing algorithms; Watermarking; Wavelet domain; Fourier transform; Log Polar Map; Mesh watermarking;
Conference_Titel :
Image and Graphics (ICIG'04), Third International Conference on
Conference_Location :
Hong Kong, China
Print_ISBN :
0-7695-2244-0
DOI :
10.1109/ICIG.2004.22