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讲座:基于龟壳魔术矩阵的隠写技术

   主讲人:张真诚

   主讲人工作单位:台湾逢甲大学

   时间:2018年12月21日10:00

    地点:中区科学楼201

    主讲人简介:张真诚教授於1982年获得交通大学计算机工程博士学位,於1998年当选为国际电子电机工程师学会 (IEEE) 会士与英国电机工程师学会 (IET) 会士。对於资讯安全、密码学与多媒体影像处理三大领域进行长期而深入之研究,於国内外学术期刊、国际学术会议与学术专书共计发表研究论文数百餘篇及学术专书36册,研究成果丰硕。

    讲座内容: Steganography is the science of secret message delivery using cover media. A digital image is a flexible medium used to carry a secret message because the slight modification of a cover image is hard to distinguish by human eyes. In this talk, I will introduce some novel steganographic methods based on different magic matrices. Among them, one method that uses a turtle shell magic matrix to guide cover pixels’ modification in order to imply secret data is the newest and the most interesting one. Experimental results demonstrated that this method, in comparison with previous related works, outperforms in both visual quality of the stego image and embedding capacity. In addition, I will introduce some future research issues that derived from the steganographic method based on the magic matrix.

   组织单位:数学与金融学院