High-security image encryption by multiplexing phase encoding in domains of dual optical transforms

• Published in: Optica applicata Vol. 53; no. 3
• Main Authors: Zhihui Li, Bin Gao, Xiaoou Pan, Linlin Li, Chenxuan Wang, Weizhuo Zuo, Yu Ji, Shutian Liu, Zhengjun Liu
• Format: Journal Article
• Language: English
• Published: 2023

A novel optical image encryption is proposed based on multiplexing of the random phase encoding with shift and rotation operations in domains of two transforms, extended fractional Fourier transform (eFrFT) and Fresnel transform. The original image is subjected to eFrFT with the action of the random...