Radial Hilbert Transform in terms of the Fourier Transform applied to Image Encryption

7th International Congress of Engineering Physics

物理学;工业技术

Morales, Y.^1 ; Díaz, L.^1 ; Torres, C.^1

Laboratorio de Óptica e Informática, Universidad Popular Del Cesar Valledupar, Cesar, Colombia^1

关键词: Digital image;    Encryption and decryption;    Image encryptions;    Mathematical algorithms;    MATLAB platform;    Program generation;    Radial hilbert transforms;    Random phase masks;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/582/1/012063/pdf
DOI  :  10.1088/1742-6596/582/1/012063

学科分类：工业工程学

来源: IOP

【 摘 要 】

In the present investigation, a mathematical algorithm under Matlab platform using Radial Hilbert Transform and Random Phase Mask for encrypting digital images is implemented. The algorithm is based on the use of the conventional Fourier transform and two random phase masks, which provide security and robustness to the system implemented. Random phase masks used during encryption and decryption are the keys to improve security and make the system immune to attacks by program generation phase masks.