A Blind Watermarking Algorithm Research Based on Fast DCT

DOI

10.2991/iccia.2012.395How to use a DOI?

Keywords

fast DCT, 2D-DCT, copyright protection, DCT modulus

Abstract

This article exploits a fast algorithm to watermark implant and extract, which first transform N×N(N=2n) two dimension DCT into one dimension DCT with N numbers of points. And then the adopted algorithm implants watermark using matrix decomposition and masterly adjusting interrelation of DCT coefficients, thus to make the visual distortion to be minima after a watermark being implanted in the image, in addition, this method is a blind approach. The results indicate that the algorithm enjoy high image reducing property and robustness to several common attacks when ensuring invisibility of watermark. Finally, it is also superior to R-C, index-mapping like matrix cut algorithms and can also improve calculating speed, which make it possible to apply for image protection.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Siyu Lai
AU  - Juan Wang
PY  - 2014/05
DA  - 2014/05
TI  - A Blind Watermarking Algorithm Research Based on Fast DCT
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 1589
EP  - 1591
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.395
DO  - 10.2991/iccia.2012.395
ID  - Lai2014/05
ER  -