Dual Digital Watermarking Algorithm for Image Based on Fractional Fourier Transform

Author

Cui, Delong

Author_Institution

Coll. of Comput. & Electron. Inf., Maoming Univ., Maoming, China

fYear

2009

fDate

6-7 June 2009

Firstpage

51

Lastpage

54

Abstract

In this paper, a dual digital watermarking embedding and detecting algorithm for image is presented, which uses the robust watermark and fragile watermark embed in the fractional Fourier transform (FRFT) domain of the image, and the watermark position and the transform order are used as the encryption keys. The experiment results show that the embedded watermark is perceptually invisible and robust to various image processing operations. Most importantly, the tampered place can be identified accurately.

Keywords

Fourier transforms; cryptography; image coding; watermarking; digital watermarking algorithm; encryption key; fractional Fourier transform; image processing; robust watermark; Authentication; Copyright protection; Discrete cosine transforms; Discrete wavelet transforms; Fourier transforms; Image processing; Information security; Robustness; Watermarking; Wavelet domain; Content authentication; FRFT; digital watermarking; fragile watermark; robust watermark; tamper detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Web Mining and Web-based Application, 2009. WMWA '09. Second Pacific-Asia Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3646-0

Type

conf

DOI

10.1109/WMWA.2009.60

Filename

5232465