Algorithm of Digital Image Watermarking by Using Wavelet Transform with Chaos

摘要：

A kind of waterrmark-inserting and extracting algorithm by combining discrete orthogonal wavelet transform with chaotic technique is proposed. Firstly the transformed digital watermarking is encrypted by logistic. Wavelet transform is implemented to the digital image to be inserted watermark. The encrypted watermark is inserted into the low-frequency wavelet coefficients. Inverse wavelet transform is done to obtain the inserted watermarking image. The original watermarking image is extracted by anti-Arnold transformation. The experimental results show that the proposed algorithm has good invisibility and good robustness to the general image attack, such as noise, the filter, rotation, the compression and so on.

关键词： wavelet transform chaos encryption Arnold transform watermarking

作者: Zhen-Xiang.Dai Li Liu

作者单位: Ningbo Institute of Education, Ningbo, China

会议类型: 国际会议

会议名称: 2010 International Conference on Circuit and Signal Processing(2010年电路与信号处理国际会议 ICCSP 2010)

会议地点: 上海

会议语种:英文

页码: 181-184

在线出版日期: 2010-12-25（万方平台首次上网日期，不代表论文的发表时间）