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講準字390號:師法自然的隱寫術

發布時間:2019-11-20|瀏覽次數:

講座報告主題:師法自然的隱寫術
專家姓名:張真誠  
日期:2019-12-26 時間:09:30
地點:計算機學院208會議室  
主辦單位:計算機科學與通信工程學院

主講簡介:張真誠講座教授,國際電子電機工程師學會會士(IEEE Fellow)與英國電機工程師學會會士(IET Fellow),先後就讀於清華大學和交通大學計算機工程研究所並榮獲國家工學博士。曾任交通大學副教授,中興大學教授,清華大學教授,中正大學講座教授、工學院院長、教務長、代理校長和教育部顧問室主任等職,曾任日本東京大學客座研究員、京都大學客座科學家。研究專長:張教授對資訊安全、密碼學與多媒體圖像處理等領域有卓越貢獻,發表學術論文千餘篇、專著38冊,取得美中臺專利18項,主持研究計畫百餘項。

主講內容:Steganography(隱寫術) 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.


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