A robust image watermarking based on DCT by Arnold transform and spread spectrum

Author

Lu, Ling ; Sun, Xinde ; Cai, Leiting

Author_Institution

Dept. of Comput. Sci. & Applic., Zhengzhou Inst. of Aeronaut. Ind. Manage., Zhengzhou, China

Volume

1

fYear

2010

fDate

20-22 Aug. 2010

Abstract

In this paper a robust image watermarking algorithm based on DCT by Arnold transform and spread spectrum is proposed. The watermarking image is scrambled by Arnold transform to enhance its privacy. The specific second high-frequency DCT coefficients of the original image are selected effectively according to Human Visual System (HVS) and characteristic of digital image processing and then encrypted watermarking is embedded into DCT coefficients selected by spread spectrum. The experimental results show that the algorithm is more robust and more effective.

Keywords

cryptography; data privacy; discrete cosine transforms; watermarking; Arnold transform; digital image processing; encrypted watermarking; human visual system; image privacy; image watermarking; second high-frequency DCT coefficients; spread spectrum; Cryptography; Filtering; Image coding; Noise; Robustness; Shearing; Transform coding; Arnold transform; DCT transform; robust image watermarking; spread spectrum;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on

Conference_Location

Chengdu

ISSN

2154-7491

Print_ISBN

978-1-4244-6539-2

Type

conf

DOI

10.1109/ICACTE.2010.5579033

Filename

5579033