Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain
Joint Authors
Vashisth, Sunanda
Yadav, A. K.
Singh, Kehar
Singh, Hukum
Source
International Journal of Optics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-31
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
We have carried out a study of optical image encryption in the Fresnel transform ( F r T ) domain, using a random phase mask (RPM) in the input plane and a phase mask based on devil’s vortex toroidal lens (DVTL) in the frequency plane.
The original images are recovered from their corresponding encrypted images by using the correct parameters of the F r T and the parameters of DVTL.
The use of a DVTL-based structured mask enhances security by increasing the key space for encryption and also aids in overcoming the problem of axis alignment associated with an optical setup.
The proposed encryption scheme is a lensless optical system and its digital implementation has been performed using MATLAB 7.6.0 (R2008a).
The scheme has been validated for a grayscale and a binary image.
The efficacy of the proposed scheme is verified by computing mean-squared-error (MSE) between the recovered and the original images.
We have also investigated the scheme’s sensitivity to the encryption parameters and examined its robustness against occlusion and noise attacks.
American Psychological Association (APA)
Singh, Hukum& Yadav, A. K.& Vashisth, Sunanda& Singh, Kehar. 2015. Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain. International Journal of Optics،Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1066257
Modern Language Association (MLA)
Singh, Hukum…[et al.]. Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain. International Journal of Optics No. 2015 (2015), pp.1-13.
https://search.emarefa.net/detail/BIM-1066257
American Medical Association (AMA)
Singh, Hukum& Yadav, A. K.& Vashisth, Sunanda& Singh, Kehar. Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain. International Journal of Optics. 2015. Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1066257
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066257