摘要
数字水印技术作为版权保护的重要手段,已得到广泛的研究和应用。将图像作为水印比用序列号和文本在受攻击时容易辨别,但由于其数据量巨大,一般很难完整嵌入。文中提出了一种分级图像作为数字水印的算法。为实现水印图像的嵌入,将水印图像进行了分级处理,一部分作为盲水印在空域嵌入,另一部分作为公开水印在频域嵌入。实验表明该算法嵌入的水印图像完整无失真,同时具有一定的鲁棒性。
As a main method for copyright protection, the technique of digital watermarking, has been widely studied and applied. When watermarking under attacked, image watermark is easy distinguish than list-number and text, But image watermark are full embedded difficultly for its have great date. In this paper, we propose a digital watermarking algorithm based on classification image. In order to embed watermark image, we process the watermark image by classification, one part embedded in space domain with blind watermark image, another part embedded in frequency domain with open watermark image. The experimental results show embedded watermark image integrity and no distortion, our algorithm has better robustness.
出处
《六盘水师范高等专科学校学报》
2007年第6期14-18,共5页
Journal of Liupanshui Teachers College
基金
贵州省六盘水市自然科学研究项目(市科2006113)
关键词
水印图像
分级
鲁棒性
watermark image
classification
robustness
