Digital Watermarking Research of Still Images with Gray-Level Digital Watermarks
Recently, digital watermarking technique has been paid much attention to solve the copyright protection Problems. But most of references focused on one- dimensional ID array or binary image watermarking embedding research. Even if gray-level image watermark appeared sometimes, the embedding algorithm could not performance well enough because of the lots of image data. In this paper, we proposed a method of embedding a gray-level digital image watermark into an image based on Haar wavelet transform including a special pre-processing to the image watermark especially. Simulations show that the techniques we proposed are successfully tolerant to improve the invisibility and robustness of the gray-level watermarking methods.
Su Fulin Ma Guoqiang Li Shaobin Ge Hongtao
Department of Electronic and Communication Engineering, Harbin Institute of Technology
国际会议
北京
英文
417-420
2007-11-04（万方平台首次上网日期，不代表论文的发表时间）