Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (31): 79-81.

• 学术探讨 • Previous Articles     Next Articles

New digital image sharing measure

WANG Ji-jun,ZHANG Xian-quan,ZHANG Jun-zhou,WEI Yue-qiong   

  1. College of Computer Science & Information Engineering,Guangxi Normal University,Guilin,Guangxi 541004,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-01 Published:2007-11-01
  • Contact: WANG Ji-jun

一种新的数字图像分存方法

王继军,张显全,张军洲,韦月琼   

  1. 广西师范大学 计算机科学与信息工程学院,广西 桂林 541004
  • 通讯作者: 王继军

Abstract: This paper presents a new method of digital image sharing.Firstly,construct a reversible matrix,decompose a secret image into several scrambling and encryption images at one time by matrix operation,then camouflage them into several megascopic and meaningful carrier images to store or transfer.This algorithm combines the scrambling technique,encryption technique,information hiding and sharing technique,but with much simpler algorithm,less computation time,smaller pixel expansion,better recovery effect.The results show that the algorithm has application value in the field of secret image storage and transmission.

摘要: 提出一种数字图像分存方法,首先构造可逆矩阵,并通过矩阵运算直接将秘密图像分解成几幅等大小的置乱加密图像,然后分别将它们伪装在几幅经过放大且有意义的载体图像中,实现了图像分存,文中将置乱加密、信息隐藏、分存技术三者有机结合,整个算法实现简单,运算量小,数据膨胀率低,安全性高,秘图恢复效果较好,大量实验也验证了算法的有效性。