Robust Watermarking in Multiwavelet Domain Based on Average Subimage of Low Frequency
In this paper, a simple and robust watermarking algorithm using balanced multiwavelet transform is proposed. The latter transform we use achieves simultaneous orthogonality and symmetry without requiring any input prefiltering or border extending. This reduction in computational complexity makes the transform a good candidate for real-time watermarking implementations. Novelty of the system lies in 1) the use of a new multiwavelet suitable for watermarking techniques, 2) the proposition of the average subimage of low frequency in multiwavelet domain, 3) watermarks generated from the above subimage during the embedding procedure which are not predetermined. The original image is transformed using the new multiwavelet and flags are created with the secret key. Then the extracted flags using the same key are compared with the original ones to confirm the copyright of digital product without the original one. Theoretical analysis and simulation results show that the proposed watermarking system has excellent robustness against various watermark attacks including printing and scanning distortions with the high quality of the watermarked image.
watermarking Balanced Optimal-Reconstruction multiwavelet average subimage low frequency robust printing and scanning attacks
Xiaonian Tang Guijun Nian Quan Wen Jianchun Wang Xiaoyan Tang
Division of Physics Jilin University Changchun 130021, 130025, China Division of Communication Engineering Jilin University Changchun 130021, 130025, China Teaching and Experiment Centre of Basic Division Jilin University Changchun 130021, 130012, China Centre of Computer and Network Jilin Province Tumour Hospital Changchun 130021, 130012, China
国际会议
北京
英文
1-5
2010-06-25（万方平台首次上网日期，不代表论文的发表时间）