An asymmetric scheme has been proposed for optical double images encryption in the
gyrator wavelet transform (GWT) domain. Grayscale and binary images are encrypted …

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 …

This paper proposed an enhanced asymmetric cryptosystem scheme for optical image
encryption in the fractional Hartley transform domain. Grayscale and binary images have …

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 …

This paper proposes a method of double image encryption based on hybrid structured
phase mask (HSPM) in the gyrator transform (GT) domain. The scheme becomes more …

The use of digital hologram (DH) in optical medical images is analyzed in this paper. These
analyses are done in various domains of double random phase encoding and it has been …

A new scheme for image encryption is proposed, using fractional Hartley transform followed
by Arnold transform and singular value decomposition in the frequency domain. As the …

A cryptosystem for securing image encryption is considered by using double random phase
encoding in Fresnel wavelet transform (FWT) domain. Random phase masks (RPMs) and …

We present a novel method for image encryption by Modified Gerchberg–Saxton Iterative
Algorithm (MGSIA) using deterministic masks (DMKs) and singular value decomposition …

A novel image authentication scheme based on two level phase retrieval algorithm (PRA)
propagated in fractional Hartley transform (FrHT) to extract two phase-only masks (POMs) is …