Research on the improved image watermarking algorithm

Author

Zhang, Jiuhua ; He, Guangpu ; Li, Min

Author_Institution

Coll. of Phys. & Electron. Eng., Leshan Normal Univ., Leshan, China

fYear

2012

fDate

19-21 Oct. 2012

Firstpage

495

Lastpage

499

Abstract

This paper presents a new method of image digital watermarking to protect its authority. The watermark is embedded in the complex wavelet domain of relative coordinates line. We improved an image watermarking algorithm, using the standard Dual Tree- Complex Wavelet Transform filters of the (13-19) taps near orthogonal filters at level 1 together with the 14-tap Q-shift filters at levels not less than 2. We compared the results with alternative deconvolution algorithms; the method of PRECGDT-CWT performs better than all the other methods tested and the published results on similar deconvolution experiments.

Keywords

deconvolution; filtering theory; image watermarking; trees (mathematics); wavelet transforms; 14-tap Q-shift filters; PRECGDT-CWT method; complex wavelet domain; deconvolution algorithms; dual tree-complex wavelet transform filters; improved image digital watermarking algorithm; orthogonal filters; Deconvolution; Filtering theory; Maximum likelihood detection; Nonlinear filters; Wavelet transforms; Wiener filters; Image deconvolution; Q-shift dual tree; conjugate gradient algorithm; wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Problem-Solving (ICCP), 2012 International Conference on

Conference_Location

Leshan

Print_ISBN

978-1-4673-1696-5

Electronic_ISBN

978-1-4673-1695-8

Type

conf

DOI

10.1109/ICCPS.2012.6384294

Filename

6384294