一种不携带隐秘信息的安全隐写模型  

Security Steganographic Model for Non-carrying Secret Information

作　　者：伍玉良[1] 陈够喜[1] 张鹏程[1] 沈红雷[1] 

机构地区：[1]中北大学电子与计算机科学技术学院,山西太原030051

出　　处：《微电子学与计算机》2011年第12期119-123,共5页Microelectronics & Computer

基　　金：国家自然科学基金(60773004);山西省科技攻关项目(20090322004)

摘　　要：基于数字图像的缩放算法,提出一种不携带隐秘信息的安全隐写模型.其利用缩放算法推演秘密信息,并非直接将秘密信息嵌入载体图像中.首先选取载体图像,通过相应放大算法将其放大到一定倍数,然后找出秘密图像与新图像中像素信息的相关性,最后再缩小为原图像大小进行传输.由于没有直接修改图像内容,其隐蔽性较好.实验证明,该方法实现简单,运算量小,安全性高,并且对嵌入的信息提取方便,满足隐藏信息的不可检测性,适应于图像隐蔽通信.Proposing a security steganographic model which do not carry secret information based on digital image scaling.The secret information was deduced by using image scaling algorithm,rather than directly embedded in the carrier image.Firstly,selected the carrier image,zoomed it to a certain multiple through the appropriate algorithm,then found out the relevance of the pixel information between secret image and a new image,finally reduced to the original image size for transmission.Since the scheme did not directly modify the image content,the hidden performance was better.Experiments show that the method is simple,computation is safe,and embedded information is convenient to be extracted,meeting the non-detection of hidden information and adapting to image concealed communication.

关 键 词：信息安全 图像缩放 像素信息 算法推演 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]