Multiple image encryption and watermarking by random phase matching

被引：89

作者：

He, MZ ^{[1
]}

Cai, LZ ^{[1
]}

Liu, Q ^{[1
]}

Wang, XC ^{[1
]}

Meng, XF ^{[1
]}

机构：

[1] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2005年 / 247卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

holographic interferometry; phase-shifting interferometry; digital image processing; image reconstruction; image encryption and watermarking;

D O I：

10.1016/j.optcom.2004.11.034

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Usually a set of transmitted patterns can realize encryption and/or watermarking just for one hidden image. In this paper, we propose a novel method of multiple image encryption and watermarking by random phase matching, which can encrypt and then decrypt more than one image with the same set of transmitted patterns based on the idea of double phase encoding and the wave field superposition. The principle and procedure of this method are explained. A series of computer simulations with phase-shifting interferometry have shown that two or four independent images can be encrypted and decrypted without or with watermarking successfully with one set of composite interferograms. The ability of this method to retrieve hidden image(s) from part of the transmitted patterns has also been verified. This technique can considerably raise the efficiency of data transmission, and it is particularly suitable for the image transmission via Internet. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：29 / 37

页数：9

共 14 条

[1] Digital image encryption and watermarking by phase-shifting interferometry [J].