Semi-Blind Watermark Algorithm for High-Resolution Remote Sensing Images Based on Key Matrix

摘要：

Based on key matrix and template matching methodology, a new semi-blind watermarking algorithm for high-resolution remote sensing images is proposed. First, the characteristics of high-resolution remote sensing images are analyzed. Second, the key matrix is proposed to save the matching result whether the highest significant bit value of image pixel value equal with the watermark value or not. Then, in the watermark extraction stage, a key matrix is used to extract the spread spectrum watermark. After extracting the spread spectrum watermark information, the original watermark is employed as the template and in accordance with the template matching methodology is used to extract the region with the maximum correlation coefficient as the extracted watermark information. Finally, it is confirmed by experiments that the watermark information embedded by the proposed algorithm is robust to withstand the general geometrical attacks and general image processing. In addition, the watermarked image has a very good invisibility.

关键词： Semi-blind Watermarking High-resolution Remote Sensing Images Key Matrix Template Matching Geometrical Attacks

作者: Na Ren Changqing Zhu Zhiwei Wang Chengsong Yang Qisheng Wang

作者单位: Key Laboratory of Virtual Geographic Environment of Ministry of Education, Nanjing Normal University Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 262-265

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）