Robust Image Watermarking Research Based on DCT-Domain
gital watermarking has been proposed as a solution to the problem of copyright protection of multimedia data. But, most watermarking methods, especially the ones based on frequency domain, can not satisfy the robustness requirement of some geometry attacks such as cropping and so on. To get around this problem, In this paper we proposed a new algorithm based on DCT field which used some special-designed techniques such as mark-signals-casting, image-patching etc. Experimental results demonstrate that the watermark algorithm we proposed is really very robust to Cropping attack and several other signal processing including JPEG compression, addition of noise etc.-
Su Fulin Ma Guoqiang Li Shaobin Zhu Yong
Dept. of Electronic and Communication Engineering, Harbin Institute of Technology
国际会议
北京
英文
421-425
2007-11-04（万方平台首次上网日期，不代表论文的发表时间）