Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Multiple-image encryption and multiplexing using a modified Gerchberg–Saxton algorithm and phase modulation in Fresnel-transform domain

Not Accessible

Your library or personal account may give you access

Abstract

What we believe to be a new technique, based on a modified Gerchberg–Saxton algorithm (MGSA) and a phase modulation scheme in the Fresnel-transform domain, is proposed to reduce cross talks existing in multiple-image encryption and multiplexing. First, each plain image is encoded and multiplexed into a phase function by using the MGSA and a different wavelength/position parameter. Then all the created phase functions are phase modulated to result in different shift amounts of the reconstruction images before being combined together into a single phase-only function. Simulation results show that the cross talks between multiplexed images have been significantly reduced, compared with prior methods [Opt. Lett. 30, 1306 (2005) ; J. Opt. A 8, 391 (2006) ], thus presenting high promise in increasing the multiplexing capacity and encrypting grayscale and color images.

© 2009 Optical Society of America

Full Article  |  PDF Article
More Like This
Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain

Hsuan T. Chang, Hone-Ene Hwang, Cheng-Ling Lee, and Mn-Ta Lee
Appl. Opt. 50(5) 710-716 (2011)

Fast double-phase retrieval in Fresnel domain using modified Gerchberg-Saxton algorithm for lensless optical security systems

Hone-Ene Hwang, Hsuan T. Chang, and Wen-Nung Lie
Opt. Express 17(16) 13700-13710 (2009)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved