A Digital Watermarking Technique Based on Discrete Wavelet Transform

摘要：

Having organically combined the features of human visual system with the characteristics of multi-resolution decomposition of digital images, this paper has studied a digital watermarking algorithm based on discrete wavelet transform, which meets the requirements of imperceptibility of watermarking embedded and robustness of watermarking extracted. The watermarking image is embedded into the original image by means of discrete wavelet transform and its inverse transform. The watermarking image embedded is extracted from the original image and the original image including the watermarking image by means of discrete wavelet transform, and is constructed by inverse discrete wavelet transform. The research results have shown that the embedding and extracting algorisms of digital watermarking images are effective and feasible.

关键词： digital watermark discrete wavelet transform imperceptibility robustness

作者: Dinghui Zhang Chao Zhou Haixia Dong

作者单位: College of Optics and Electronic Information Engineering University of Shanghai for Science and Technology Shanghai, 200093, P.R.China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）