Colour image encryption based on logistic mapping and double random‐phase encoding. Issue 4 (1st April 2017)

• Record Type: Journal Article
• Authors: Huang, Huiqing; Yang, Shouzhi
• Is Part Of: IET image processing. Volume 11:Issue 4(2017)
• Page Start: 211
• Page End: 216
• Publication Date: 2017-04-01
• Subjects: image colour analysis -- cryptography -- image coding; colour image encryption -- logistic mapping -- double random phase encoding -- blue components -- green components -- red components; Image processing -- Periodicals; 621.36705
• DOI: 10.1049/iet-ipr.2016.0552
• Languages: English
• ISSNs: 1751-9659

Abstract

Abstract : In this study, the authors propose a novel method to encrypt a colour image by use of Logistic mapping and double random‐phase encoding. Firstly, use Logistic mapping to diffuse the colour image, then the red, green and blue components of the result are scrambled by replacement matrices generated by Logistic mapping. Secondly, by utilising double random‐phase encoding to encrypt the three scrambled images into one encrypted image. Experiment results reveal the fact that the proposed method not only can achieve good encryption result, but also that the key space is large enough to resist against common attack.