A New Blind Image Watermarking Technique for Dual Watermarks Using Low-Frequency Band DCT Coefficients

Author

Al-Gindy, Ahmed N. ; Tawfik, Ayman ; Ahmad, Hussain Al ; Qahwaji, Rami A.

Author_Institution

Ajman Univ. of Sci. & Technol., Abu Dhabi

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

538

Lastpage

541

Abstract

This paper deals with a new blind robust watermarking technique for embedding two watermarks into a host image. The technique is based on embedding watermark information in sixteen low-frequency band coefficients of the DCT sub-blocks. The Embedding process is based on changing the selected DCT-coefficients of the host image to odd or even values depending on the binary watermark´s bit value. The proposed blind watermarking embedding has shown to be strongly robust against several attacks.

Keywords

blind source separation; discrete cosine transforms; image coding; merging; watermarking; binary watermark´s bit value; blind image watermarking technique; cropping attacks; dual watermarks merging; embedding watermark information; image procesing; low-frequency band DCT coefficients; Data mining; Discrete cosine transforms; Educational institutions; Frequency; Image coding; Informatics; Paper technology; Robustness; Transform coding; Watermarking; Blind; DCT; Image processing; Watermark;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on

Conference_Location

Marrakech

Print_ISBN

978-1-4244-1377-5

Electronic_ISBN

978-1-4244-1378-2

Type

conf

DOI

10.1109/ICECS.2007.4511047

Filename

4511047