DocumentCode :
2762006
Title :
Robust image watermarking with Zernike moments
Author :
Chen, Qing ; Yang, Xiaoli ; Zhao, Jiying
Author_Institution :
Sch. of Inf. Technol. & Eng., Ottawa Univ., Ont.
fYear :
2005
fDate :
1-4 May 2005
Firstpage :
1340
Lastpage :
1343
Abstract :
In this paper, we studied the image watermarking system based on Zernike moments. Because the magnitudes of Zernike moments have the desirable invariance property against image rotation, we employ Zernike moments as our watermark signal to achieve the robustness against image rotation. The watermark is embedded to the cover image in the spatial domain. Based on whether the image is RST attacked or not, two watermark detection algorithms are proposed and tested. The first algorithm can reconstruct the embedded watermark with the Zernike moments´ vector extracted from the testing image if it does not undergo any RST attacks. The second algorithm extracts the feature vector in the format of the magnitudes of the Zernike moments from the testing image and employs the RMSE to detect the watermark
Keywords :
feature extraction; image coding; watermarking; Zernike moments; image rotation; image watermarking; invariance property; vector extraction; watermark detection algorithms; Detection algorithms; Fourier transforms; Image reconstruction; Information technology; Lakes; Polynomials; Robustness; Software engineering; Testing; Watermarking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location :
Saskatoon, Sask.
ISSN :
0840-7789
Print_ISBN :
0-7803-8885-2
Type :
conf
DOI :
10.1109/CCECE.2005.1557225
Filename :
1557225
Link To Document :
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