一种基于图片边缘轮廓的信息隐藏方法  

An Information Hiding Method Based on Image Edge Contour

作　　者：任志敏[1] 曾文军 张良 Ren Zhimin;Zeng Wenjun;Zhang Liang(College of Mechanical Engineering,Changzhou Vocational Institute of Textile and Garment,Changzhou Jiangsu 213164,China;Wujin District Information Center,Changzhou Jiangsu 213159,China)

机构地区：[1]常州纺织服装职业技术学院机电学院,江苏常州213164 [2]武进区信息中心,江苏常州213159

出　　处：《山西电子技术》2022年第4期5-8,共4页Shanxi Electronic Technology

基　　金：江苏省大学生创新创业训练计划(202112807001Y);2020年常州纺织服装职业技术学院优秀青年骨干教师项目(czfzrc2020001)。

摘　　要：信息隐藏是一种将数据隐藏到另外一种形式的数据过程中的技术,以保护数据免受窥探和攻击。通过各种空域变换方法,实现信息隐藏,最为典型的是最低有效位LSB替换算法,将隐藏信息嵌入到灰度图像中。采用Canny图片边缘检测算法,通过在图片边缘轮廓像素点嵌入隐藏数据,改进了LSB替换算法。实验结果表明,不仅提高了隐写图片的质量,而且增加了数据嵌入容量。Information hiding is a technique of hiding data into another form of data in order to protect it from prying eyes and attacks.Through various spatial transformation methods,information hiding is realized.The most typical one is the least significant bit LSB replacement algorithm,which embeds the hidden information into the grayscale image.Using the image edge detection algorithm,the LSB replacement algorithm is improved by embedding hidden data in the image edge contour pixels.The experimental results show that it not only improves the quality of steganographic images,but also increases the data embedding capacity.

关 键 词：信息隐藏 最低有效位 图片 边缘 信息安全 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]