激光技术Issue(4)：551-555,5.DOI:10.7510/jgjs.issn.1001-3806.2014.04.023
基于分数傅里叶变换的双彩色图像加密
Encryption and decryption for double images based on fractional Fourier transformation
摘要
Abstract
In order to encrypt double color images in a single channel , firstly, two color images to be encrypted were converted to indexed images instead of RGB model and the color mapping matrix of the index images was reserved .Then, after the logarithm operation , fraction Fourier transformation and random modulation of the data matrix , both the images were encrypted .The theoretical analysis and experiment results indicate that two color images can be retrieved without distortion only when correct keys are used .The algorithm has high security .关键词
信息光学/彩色图像加密/分数傅里叶变换/索引图像Key words
information optics/color image encryption/fractional Fourier transform/indexed image分类
数理科学引用本文复制引用
王鹏,袁操今,王林,李重光..基于分数傅里叶变换的双彩色图像加密[J].激光技术,2014,(4):551-555,5.基金项目
国家自然科学基金资助项目 （）
