Format

Send to

Choose Destination
Opt Lett. 2001 Aug 15;26(16):1242-4.

Optical image encryption with multistage and multichannel fractional Fourier-domain filtering.

Abstract

We present a novel image-encryption algorithm that employs multichannel and multistage fractional Fourier-domain filtering architecture. We perform the encryption and decryption by randomly filtering the spatial frequency of the image and then recombining the information from the algorithm in a multistage fractional Fourier domain with pure random-intensity-encoded masks and their complements in a multichannel scheme. The algorithm can be implemented iteratively in an electro-optical setup. Numerical simulations have verified the validity of the algorithm.

PMID:
18049573
DOI:
10.1364/ol.26.001242

Supplemental Content

Loading ...
Support Center