A blind watermarking algorithm based on block DCT for dual color images

Author

Zheng Chaomei ; Li Yuan

Author_Institution

Nanchang Univ., Nanchang, China

Volume

3

fYear

2011

fDate

24-26 Dec. 2011

Firstpage

1690

Lastpage

1694

Abstract

Firstly, this paper introduces some related concepts, principles, technology, and image pre-processing knowledge about digital watermarking. Secondly, on the basis of JPEG image compression coding and the HVS, the paper analyzes and compares some current image watermarking algorithms based on block DCT, and presents a novel dual-color image watermarking algorithm based on spread-spectrum technology and block DCT. Lastly, VC++ and Matlab7.0 are used to implement the proposed image watermarking algorithm. Simulation results show that the proposed algorithm in this paper has good performances in transparency and robustness.

Keywords

data compression; discrete cosine transforms; image coding; image watermarking; JPEG image compression coding; Matlab7.0; VC++; blind watermarking algorithm; block DCT; digital watermarking; dual color image watermarking algorithm; image pre-processing knowledge; spread-spectrum technology; Brushes; Filtering; Watermarking; bit error correction; block DCT; color space; image compression; spread spectrum technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Network Technology (ICCSNT), 2011 International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-1586-0

Type

conf

DOI

10.1109/ICCSNT.2011.6182292

Filename

6182292