A Robust Watermark Algorithm for JPEG2000 Images

摘要：

In order to protect the copyright of JPEG2000 images, a robust watermark algorithm for JPEG2000 images is proposed. In this algorithm, watermark information is embedded by modifying the wavelet coefficients in pairs after quantization of the original image. On the precondition of robustness, the change is little by especially dealing with wavelet coefficients. Experiment results show that the algorithm has the character of transparency and is robust to common image processing operations such as compressing transition, adding noise, sharping and cutting.

关键词： JPEG2000 image wavelet coefficients transparency robustness

作者: Gao Hai-ying Liu Guo-qiang Li Xu Xu Yin

作者单位: Information Science Technology Institute ZhengZhou,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 230-233

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）