Optical Encryption with Jigsaw Transform using Matlab
This work addresses image security for applications like data protection, but it is incremental as it builds on existing jigsaw transform methods with a focus on implementation.
The paper tackles image encryption by proposing an optical encryption technique using jigsaw transform, implemented both analogically and digitally in MATLAB, and finds that applying jigsaw algorithms to bit-plane decomposed images provides significantly better security than to non-decomposed images.
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.