Optical Encryption with Jigsaw Transform using Matlab

TL;DR

This paper presents a digital implementation of optical image encryption using jigsaw transform algorithms in MATLAB, demonstrating enhanced security when applied directly to unprocessed images.

Contribution

It introduces a MATLAB-based digital algorithm for optical encryption using jigsaw transforms, bridging analog and digital methods with improved security features.

Findings

Enhanced security when applying jigsaw algorithms to original images

Development of a MATLAB routine for optical encryption

Proposed functional diagram linking analog and digital systems

Abstract

This article will describe an optical encryption technical of images which it is proposed in an analogical and digital way. The development of the technical to a digital level, it is made to implementing algorithms (routines) in MATLAB. We will propose a functional diagram to the described analogical development from which designated the optical systems associated with each functional block. Level of security that the jigsaw algorithms provide applied on an image, which has been decomposed into its bit-planes, is significantly better if they are applied on an image that has not been previously decomposed.