Optimization-Based Image Watermarking Scheme in the Wavelet Domain

Author

Chen, Shuo-Tsung ; Huang, Huang-Nan ; Hsu, Chih-Yu

Author_Institution

Dept. of Math., Tunghai Univ., Taichung, Taiwan

fYear

2010

fDate

13-15 Dec. 2010

Firstpage

671

Lastpage

674

Abstract

This study presents an optimization-based image watermarking scheme by using Lagrange Principle. Unlike traditional way of single-coefficient quantization, this study uses multi-coefficients quantization to embed the watermarks. To modify the low-frequency coefficients of discrete wavelet transform (DWT), the Lagrange Principle is applied to derive an optimization-based formula. Experimental results show that the proposed method has good image quality under high embedding capacity and robust to JPEG compression.

Keywords

discrete wavelet transforms; embedded systems; image coding; image watermarking; optimisation; DWT; JPEG compression; Lagrange principle; discrete wavelet transform; high embedding capacity; image quality; low-frequency coefficients; multicoefficients quantization; optimization-based formula; optimization-based image watermarking scheme; single-coefficient quantization; wavelet domain; Discrete wavelet transforms; Equations; Manganese; PSNR; Quantization; Robustness; Watermarking; DWT; Image watermarking; Lagrange Principle;

fLanguage

English

Publisher

ieee

Conference_Titel

Genetic and Evolutionary Computing (ICGEC), 2010 Fourth International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-8891-9

Electronic_ISBN

978-0-7695-4281-2

Type

conf

DOI

10.1109/ICGEC.2010.171

Filename

5715521