Nowadays, security in data transfer is of special importance. Images are of the most
attractive kinds of data in the encryption domain. Color images are more attractive than the …

Chaotic systems are suitable for image encryption owing to their numerous intrinsic
characteristics. However, chaotic maps and algorithmic structures employed in many …

To increase the robustness against common attacks, a novel image encryption algorithm is
proposed based on the phase-truncated short-time fractional Fourier transform (PTSTFrFT) …

Smart cameras and image sensors are widely used in industrial processes, from the
designing to the quality checking of the final product. Images generated by these sensors …

This work presents a literature review of the fractional Fourier transform (FrFT) investigations
and applications in the biomedical field. The FrFT is a time-frequency analysis tool that has …

In this paper, we propose a new optical encryption approach based on quantum walks and
double random phase encoding technique. Quantum walks have been proven as an …

This paper proposes a new encryption and decryption method for triple color images using
2D multiple parameter fractional discrete Fourier transform (MPFrDFT) and 3D Arnold …

A novel cryptosystem of color images is proposed. We defined a multi-channel orthogonal
Gegenbauer moments with fractional order (FrMGMs) in Cartesian coordinates and then …

Iris image encryption is a significant research area in the field of image security. With the
increasing use of iris biometric recognition technology in various applications, it is crucial to …

In order to transmit multiple-image synchronously, this paper introduces an encryption
algorithm by combining equal modulus decomposition with quaternion gyrator transform …