FDCT-Based Digital Watermarking Algorithm for Gray Images

摘要：

Digital watermarking technology means that the hidden information is embedded in digital multimedia data by way of signal processing. In this paper, we firstly analyze the Fast Discrete Curvelet Transforms (FDCT) and Discrete Wavelet Transforms (DWT) which are usually used in image processing and figure out that DWT can not approximate optimally the image which contains the line singularity. And then a new encrypted embedded algorithm is presented based on FDCT. Based on bit-plane of gray image, the algorithm makes use of the advantage of FDCT and the watermark is encrypted by Chaotic Map and Arnold Transforms (AT) which is imbedded into the proper coefficient of FDCT. The result of our experiment shows that this algorithm is robust and transparent compared with DWT.

关键词： Fast Discrete Curvelet Transforms Digital Watermarking Bit-Plane Encrypt

作者: Jiang Yu Linsheng Li Anhong Wang Qichuan Tian

作者单位: Taiyuan University of Science and Technology, Post Code: 030024,Taiyuan, China

会议类型: 国际会议

会议名称: International Conference on Computational Aspects of Social Networks(国际社会网络计算会议 CASoN 2010)

会议地点: 太原

会议语种:英文

页码: 646-649

在线出版日期: 2010-09-26（万方平台首次上网日期，不代表论文的发表时间）