Blind Watermarking Scheme Based on Remainder of Distance Vector of Wavelet Coefficients

摘要：

This paper introduces a blind watermarking scheme based on remainder of distance vector between two wavetet blocks. In the proposed scheme, the wavelet coefficients from frequency sub-band LH3 and HL3 have been grouped into two blocks for invisible watermark embedding and extraction. In the next stage, the distance vectors beNeen two blocks are computed and then remainder after division calculated. For embedding O and I bit, the remainder of distance vectors fixed up to specific values. By increasing divisor, it is possible to embed watermark bits in the host image with more energy; however, this will lead to PSNR reduction. The proposed method, takes advantage of considerable robustness against prevalent attacks and another profit have wide range trade off between watermark embedding energy and the quality of watermarked image with select suitable value of divisor. The experimental results show that the proposed algoritbm is robust against image processing attacks and also the comparison analysis indicates that has better performance than the other blind watermarking methods.

关键词： blind watermarking distance vector Wavelet Remainder

作者: Mohammad Javad Dehghani Mehdi Hajizadeh Mohammad Sadegh Helfroush

作者单位: Department of Electrical Engineering Shiraz University of Technology Shiraz, Iran Department of Electrical Engineering Shiraz University of Technology Shiraz, Iran Department of Electrical Engineering Shiraz University of Technology Shiraz Iran

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1685-1689

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）