Image sharing scheme based on discrete fractional random transform

被引：10
|
作者：
Liu, Zhengjun [1 ,2 ]
Liu, Shutian [1 ]
Ahmad, Muhammad Ashfaq [3 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Dept Automat Measurement & Control Engn, Harbin 150001, Peoples R China
[3] COMSATS Inst Informat Technol, Dept Phys, Lahore 54000, Pakistan
来源：
OPTIK | 2010年 / 121卷 / 06期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Image encryption; Discrete fractional random transform; Image sharing; Cryptography; SECRET IMAGES; SIZE;
D O I：
10.1016/j.ijleo.2008.07.029
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a novel image sharing algorithm based on the discrete fractional random transform (DFRNT). The secret image is shared into several shadow images in the DFRNT domain together with some noise images as the encryption keys to increase the security. The decryption only requires a part of shadow images and therefore is independent of those noise images. The (t, n) threshold sharing scheme can be implemented completely by the proposed algorithm. The numerical simulations have demonstrated the effectiveness of this image sharing scheme. (c) 2008 Elsevier GmbH. All rights reserved.
引用
收藏
页码：495 / 499
页数：5
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