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Damageless digital watermarking using complex-valued artificial neural network

Olanweraju, Rashidah Funke and Ali Aburas, Abdurazzag and Khalifa, Othman Omran and Hassan Abdalla Hashim, Aisha (2010) Damageless digital watermarking using complex-valued artificial neural network. Journal of Information and Communication Technology, 9. pp. 111-137. ISSN 2180-3862 (O), 1675-414X (P)

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Abstract

Several high-ranking watermarking schemes using neural networks have been proposed in order to make the watermark stronger to resist attacks. However, the current system only deals with real value data. Once the data become complex, the current algorithms are not capable of handling complex data. In this paper, a distortion-free digital watermarking scheme based on Complex-Valued Neural Network (CVNN) in transform domain is proposed. Fast Fourier Transform (FFT) was used to obtain the complex number (real and imaginary part) of the host image. The complex values form the input data of the Complex Back-Propagation (CBP) algorithm. Because neural networks perform best on detection, classification, learning and adaption, these features are employed to simulate the Safe Region (SR) to embed the watermark, thus, watermark are appropriately mapped to the mid frequency of selected coeffi cients. The algorithm was appraised by Mean Squared Error MSE and Average Difference Indicator (ADI). Implementation results have shown that this watermarking algorithm has a high level of robustness and accuracy in recovery of the watermark.

Item Type: Article (Journal)
Additional Information: 4119/5612
Uncontrolled Keywords: Digital Watermarking, Complex Back Propagation Algorithm, Complex-Valued Data (CVD), Complex-Valued Neural Network (CVNN),Fast Fourier Transform (FFT
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Prof. Dr Othman O. Khalifa
Date Deposited: 15 Oct 2011 14:13
Last Modified: 13 Dec 2012 13:17
URI: http://irep.iium.edu.my/id/eprint/5612

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