一种基于多图像融合的门限分存方案  

A IMAGE SHARING OF THRESHOLD BASED ON MULTI-IMAGES AMALGAMATION

作　　者：赖步英[1] 王小铭[2] 陈树彬[3] 

机构地区：[1]广州航海高等专科学校计算机与信息工程系,广东广州510330 [2]华南师范大学计算机学院,广东广州510631 [3]韩山师范学院财务处,广东潮州521041

出　　处：《华南师范大学学报（自然科学版）》2011年第1期54-57,65,共5页Journal of South China Normal University(Natural Science Edition)

摘　　要：从图像融合和分存的原理,提出一种基于多图像融合的(m,n)门限分存方法,利用一组线性无关的基于多图像融合的Bernstein多项式,得到秘密图像与载体图像融合而成的分存图.图像重建时则在已知载体图像、分存图像和多项式组系数矩阵的条件下,通过多项式组的求解实现分存秘密图像的恢复.结果表明,该方法可用于同时对多幅数字图像的信息隐藏,有较高的分存和隐蔽效率以及灵活选择分存变换矩阵、载体图像和公开图像的特点.In view of the principles of image amalgamation and threshold sharing,a method based on multi-image amalgamation was put forward to deal with（m,n）-threshold image sharing.A sharing map composed of secret images and carrier images was obtained by a set of linearly independent Bernstein polynomial based on multi-image amalgamation.As constructing images,the sharing secret images were recovered by solving polynomial based on the given carrier images,sharing secret images and polynomial coefficient matrix.Experimental results and analysis reveal that this method can be used for hiding information of multiple digital images,and it also has the following characteristics：high efficiency of sub-storage and concealment,high flexibility of choosing sharing transformation matrix,carrier images and public images.

关 键 词：(m n)门限 图像分存 多图像融合 BERNSTEIN多项式 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]