Abstract: Of all the stegnography medias, digital image is the most common one. This paper proposes a scheme about digital image steganography detecting system and discusses the key technologies in detail,such as the linearity forecast model of normal image wavelet packet decomposition coefficient, the arithmetic of image character creating based on wavelet packet decomposition and the designment of classifier using fisher linear discriminant. It also introduces the functions and the purposes of the system, moreover, tests and evaluats system performance. At the end , it points out improving direction.

摘要： 数字图像是隐秘载体中最常见的一种,该文设计了一个数字图像隐秘检测系统,详细讨论了该系统涉及的关键技术及其功能和用途,并对系统性能进行了测试评估,最后指出了可进一步改进完善的方向。

关键词: 数字图像, 隐秘检测, 小波包分解, 模式识别

CLC Number: 

• TP309