A Robust Digital Watermarking Algorithm for Cropped Images
Digital watermarking technique has been developed for many years, various kinds of algorithms in frequency domain has being become more and more important because of their good robustness. But, in these methods, the position where the watermark was embedded must be known before detecting and extracting the watermark, they can not satisfy the robustness of geometry attacks such as cropping. In this paper, we propose a new image watermarking algorithm based on some new techniques such as labeling the watermarks position, image patching, and solve these problems. Experimental results show the algorithm we proposed here is very effective.
Su Fulin Ma Guoqiang Li Shaobin Wu Jiang
Dept. of Electronic and Communication Engineering, Harbin Institute of Technology
国际会议
北京
英文
414-416
2007-11-04（万方平台首次上网日期，不代表论文的发表时间）