Optical hiding based on single-input multiple-output and binary amplitude-only holograms via the modified Gerchberg-Saxton algorithm

Optics has provided a promising means for the development of information hiding in recent years. However, conventional optical systems can only hide limited number images, and implementation complexity is usually high methods. In this paper, we propose new scheme to implement based on single-input multiple-output (SIMO) binary amplitude-only holograms (AOHs) using modified Gerchberg-Saxton algorithm (MGSA). Different from methods with multiplexing capacity, proposed retrieve large different secret images one single host image during retrieval. addition, it also illustrated that reduced method. Simulations experiments are conducted verify feasibility, security robustness It expected method could open up research perspective multiple-image hiding.