基于复杂纹理的遥感影像数据水印加密算法  

Watermarking Algorithm of Remote Sensing Image Data Based on Complex Texture

作　　者：李甜 秦思娴 乔炜 李琼 Li Tian;Qin Sixian;Qiao Wei;Li Qiong(Wuhan Geomatics Institute,Wuhan 430022,China)

机构地区：[1]武汉市测绘研究院,湖北武汉430022

出　　处：《城市勘测》2019年第1期98-102,共5页Urban Geotechnical Investigation & Surveying

基　　金：精密工程与工业测量国家测绘地理信息局重点实验室基金(PF2015-10);地理国情监测国家测绘地理信息局重点实验室2017年开放基金(2017NGCM03)

摘　　要：遥感产业作为我国高科技新兴战略产业已经在我国军事政治、经济民生等方面起到了突出的贡献作用。数字水印技术是信息隐藏领域与多个领域交叉的信息安全技术,能够很好地应用到遥感专题产品的质量监督过程中,为遥感产业提供坚实可靠的保障。本文对遥感影像数据可见水印加密算法进行了研究,针对DWT算法存在的不能考虑影像全局特征和纹理特征的问题,提出了基于纹理复杂度的改进DWT算法,实验结果表明嵌入水印后影像质量较原始算法有了明显改进,有较强的鲁棒性和实用性。As a high-tech emerging strategic industry in China,remote sensing industry has played a prominent role in China′s military politics,economy and people′s livelihood.Digital watermark technology is a field of information hiding and multiple areas of cross of information security technology,which have the good application to remote sensing in the process of project product quality supervision for remote sensing industry provide a solid and reliable protection.Visible watermark encryption algorithm in this paper,the remote sensing image data are studied,aiming at the existence of DWT algorithm cannot consider the matter of global image features and texture features,an improved algorithm of DWT is proposed based on texture complexity,the experimental results show that the quality of image after embedding watermark than the original algorithm has obvious improvement,strong robustness and practicality.

关 键 词：遥感影像 数字水印 加密算法 DWT算法 

分 类 号：P283.8[天文地球—地图制图学与地理信息工程] TP751.1[天文地球—测绘科学与技术]