Watermark Image Restoration Method Based on Block Hopfield Network

Authors:
Xiaohong Ma;Xin Li;Hualou Liang
Affiliations:
School of Electronic and Information Engineering, Dalian University of Technology, Dalian, People's Republic of China 116023;School of Electronic and Information Engineering, Dalian University of Technology, Dalian, People's Republic of China 116023;School of Biomedical Engineering, Drexel University, Philadelphia, USA PA 19104
Venue:
ISNN 2009 Proceedings of the 6th International Symposium on Neural Networks: Advances in Neural Networks - Part III
Year:
2009

Citing 5
Cited 0

Automatic image authentication and recovery using fractal code embedding and image inpainting

Pattern Recognition
HDWT-based grayscale watermark for copyright protection

Expert Systems with Applications: An International Journal
Self-synchronization Blind Audio Watermarking Based on Feature Extraction and Subsampling

ISNN '07 Proceedings of the 4th international symposium on Neural Networks: Part II--Advances in Neural Networks
Digital Watermarking and Steganography

Digital Watermarking and Steganography
An Efficient Watermarking Method Based on Significant Difference of Wavelet Coefficient Quantization

IEEE Transactions on Multimedia

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper, Hopfield network is introduced for the restoration of extracted watermark image which may be blurred due to the signal transfer or various signal processing operations. A novel codebook method is designed to reduce the storage space of the network and to increase the security. First, each watermark image is divided into adjacent and non-overlapped sub-block images and mapped into a codebook. Second, this codebook is encrypted by a chaotic sequence. During the process of watermark restoration, the codebook can be obtained via a secret key which is then used to construct block weight matrix of the neural network for the restoration of the blurred watermark images. Simulation results demonstrate the excellent performance of the proposed method.