Fully-phase image encryption is considered more secure as compared to an amplitude
image encryption. In the present paper, an encryption scheme is proposed for double phase …

We propose a method for fully phase image encryption based on double random-structured
phase mask encoding in the gyrator transform (GT) domain. The security of the system is …

Nowadays, scientists make effort to provide security for the communication channels.
Several security and privacy threats are introduced via the Internet as the major …

A novel multiple-image encryption scheme using the nonlinear iterative phase retrieval
algorithm in the gyrator transform domain under the illumination of an optical vortex beam is …

We have carried out a study of optical image encryption in the Fresnel transform (FrT)
domain, using a random phase mask (RPM) in the input plane and a phase mask based on …

This study presents a novel encryption method for the security of DICOM (Digital Imaging
and Communications in Medicine) images used in medical applications. The proposed …

We propose a watermarking scheme for phase images, based on the use of devil's vortex
Fresnel lens (DVFL) as a phase mask. The DVFL provides much-desired parameter-rich …

The aim of this study is watermarking image encryption based on the fractional Mellin
transform (FrMT) and singular value decomposition (SVD) using deterministic phase masks …

In this paper, an asymmetric cryptosystem has been proposed to enhance the security of
DRPE. The traditional DRPE scheme is thus tweaked by using fractional Fourier transform …

A novel color image encryption algorithm based on Arnold-and discrete Hartley transform in
gyrator transform domain is proposed. In this method, a color image is segregated into red …