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Colour image encryption based on logistic mapping and double random-phase encoding

机译:基于逻辑映射和双随机相位编码的彩色图像加密

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摘要

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.
机译:在这项研究中,作者提出了一种使用Logistic映射和双重随机相位编码来加密彩色图像的新颖方法。首先,使用Logistic映射扩散彩色图像,然后通过Logistic映射生成的替换矩阵对结果的红色,绿色和蓝色分量进行加扰。其次,利用双重随机相位编码将三个加扰图像加密成一个加密图像。实验结果表明,该方法不仅可以达到良好的加密效果,而且密钥空间足够大,可以抵抗普通攻击。

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