CAJ | 학술논문

针对互联网上大量的隐写软件利用数字图像隐藏秘密消息,文中提出了基于净图描述的通用隐写分析技术.这种隐写分析技术能有效地检测出图像是否含秘密信息,通过提取两种新颖特征,即纹理特征和虚特征值分解(IED)特征,对净图进行完整的定量描述,又经过降维处理,解决了维数灾难问题,提高了检测速度;并且设计了与特征相匹配的柔性化超椭球体一类分类器,提高了检测性能.
침대호련망상대량적은사연건이용수자도상은장비밀소식,문중제출료기우정도묘술적통용은사분석기술.저충은사분석기술능유효지검측출도상시부함비밀신식,통과제취량충신영특정,즉문리특정화허특정치분해(IED)특정,대정도진행완정적정량묘술,우경과강유처리,해결료유수재난문제,제고료검측속도;병차설계료여특정상필배적유성화초타구체일류분류기,제고료검측성능.
On Internet,There are a large number of steganographic programs to hide message in digital image.This paper proposes a novel general steganalysis technique based on cover image describing.It can detect effectively whether or not secret messages are in digital image by this technique.Cover image is quantitatively described fully by texture feature and imaginary eigenvalue decomposition(IED)feature.It can increase detection speed by a reducing dimension processor,and the curse of dimensionality problem can be solved.One classifier based on a flexile super-ellipse-sphere is designed,and detection performance is improved.