摘要：A watermarking technique for copyright protection of images is proposed in this paper. The idea is to use the human visual effects as the feature of images. The embedding strategy is to put the extracted image feature together with the watermark to generate the secret key for watermark retrieval. This strategy for watermarking system is wholly different from previous works. In addition, a voting approach is used to improve the correctness of the retrieved watermarks. The experimental results show that our method can against attacks by many image altering algorithms, such as filtering, lossy compression, rotation and so on. Furthermore, the proposed scheme is not only applicable to ordinary natural images but also to cartoon graphics.
关键词：Digital watermarking; human visual effects; intellectual property right; time-stamping
