Freaks City

Introduction Chaos-based image encryption algorithms have found widespread application across various industries. However, many existing encryption methods rely on low-dimensional chaotic systems, which compromises security and fails to meet modern cryptographic requirements. To address these limitations, this paper presents a novel image encry ...

A 4f optical system consists of two lenses separated by a distance equal to four times their focal length. When placed in a coherent light path, it performs two consecutive Fourier transforms, making it a ideal platform for spatial‐domain and frequency‐domain phase modulation. Double random phase encoding (DRPE) exploits this architecture by ap ...