期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2019
卷号：97
期号：18
页码：4780-4796
出版社：Journal of Theoretical and Applied
摘要：This paper introduces an efficient optical color image cryptosystem using the discrete cosine transform (DCT) and the Double Random Phase Encoding (DRPE). The proposed method employs the DCT on input red, green and blue color plain image components. The resulting color image components are then decomposed by the Fourier Transform (FT). A number of test experiments are performed in order to evaluate the proposed method performance mainly the security and the quality of the encryption. The achieved results demonstrated the superiority of the proposed approach with respect to encryption quality, statistical, information entropy, maximum deviation, and irregular deviation, differential, and noise immunity tests.
关键词：Discrete cosine transform; Double Random Phase Encoding; Color Image Cryptosystem
