Paper Info
Title
Robust Multiple Color Images Encryption Using Discrete Fourier Transforms And Chaotic Map
Abstract
Based on discrete Fourier transforms and logistic-exponent-sine map, this paper investigates an encryption algorithm for multiple color images. In the encryption process, each color image represented in trinion matrix is performed by block-wise discrete trinion Fourier transforms. Then the first real matrix is constructed by splicing real and imaginary parts of transformed results. Followed by two-dimensional discrete Fourier transform, the second real matrix is synthesized only using half of the spectrum on the basis of the conjugate symmetry property. In order to further enhance the randomness of interim result, the random multi-resolution singular value decomposition is exploited. Afterwards, a sharing process is utilized to get final cipherimages. Numerical simulations performed on 300 color images have shown that quality of correctly decrypted images is much better, where the PSNR value is up to 305.03 dB. The number of changing pixel rate and unified average changing intensity are respectively greater than 99.99% and 33.33%, indicating good sensitivity. The comparison with other methods under noise and cropping attacks validates the reliability of the proposed algorithm.
Year
DOI
Venue
2021
10.1016/j.image.2021.116168
SIGNAL PROCESSING-IMAGE COMMUNICATION
Keywords
DocType
Volume
Multiple image encryption, Trinion number, Discrete Fourier transform, Sharing, Random MR-SVD
Journal
93
ISSN
Citations 
PageRank 
0923-5965
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Yadong Tang110.69
Zhuhong Shao2909.65
Xiaoxu Zhao301.01
Yuanyuan Shang4403.04