A novel blind image watermarking technique for colour RGB images in the DCT domain using green channel

Author

Al-Gindy, A. ; Al-Ahmad, Hussain ; Qahwaji, R. ; Tawfik, Ameer

Author_Institution

Ajman Univ. of Sci. & Technol., Ajman

fYear

2008

fDate

8-10 Aug. 2008

Firstpage

26

Lastpage

31

Abstract

This paper presents a new algorithm for colour digital image watermarking. The 24 bits/pixel RGB images are used and the watermark is placed on the green channel of the RGB image. The green channel is chosen after an analytical investigation process was carried out using some popular measurement metrics. The analysis and embedding processes have been carried out using the discrete cosine transform DCT. The new watermarking method has shown to be resistant to JPEG compression, cropping, scaling, low-pass, median and removal attack. This algorithm produces more than 65 dB of average PSNR.

Keywords

discrete cosine transforms; image coding; image colour analysis; image resolution; watermarking; DCT domain; JPEG compression; blind image watermarking technique; colour RGB images; discrete cosine transform; green channel; Color; Colored noise; Copyright protection; Digital images; Discrete cosine transforms; Frequency domain analysis; Image processing; Paper technology; Robustness; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Applications, 2008. MIC-CCA 2008. Mosharaka International Conference on

Conference_Location

Amman

Print_ISBN

978-9927-486-02-0

Electronic_ISBN

978-9927-486-03-7

Type

conf

DOI

10.1109/MICCCA.2008.4669845

Filename

4669845