|
Embedding of computer-generated hologram in a dithered image |
Applied Optics, Vol. 50, Issue 34, pp. H315-H326 (2011)
http://dx.doi.org/10.1364/AO.50.00H315
Enhanced HTML 
Acrobat PDF (4951 KB)
Abstract
We have developed an encryption method using a computer-generated hologram (CGH) embedded in a dithered image. First, confidential information is converted into a CGH. Next, the CGH data undergo two separate dithering processes in parallel: one corresponding to CGH white pixels and one corresponding to CGH black pixels. The results from both processes are used to form a dither matrix for creating the final dithered and encoded image. In this way, confidential information can be embedded into the image. The confidential information can be extracted using a technique similar to CGH optical reconstruction.
© 2011 Optical Society of America
OCIS Codes
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(100.0100) Image processing : Image processing
(100.4995) Image processing : Pattern recognition, metrics
ToC Category:
Computer-Generated Holography
History
Original Manuscript: June 6, 2011
Revised Manuscript: August 28, 2011
Manuscript Accepted: October 28, 2011
Published: December 6, 2011
Virtual Issues
Digital Holography and 3D Imaging 2011 (2011) Applied Optics
Citation
Ken-ichi Tanaka, "Embedding of computer-generated hologram in a dithered image," Appl. Opt. 50, H315-H326 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-34-H315
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- In-Line Digital Holographic Interferometry (AO)
- Improved double-phase computer-generated holograms implemented with phase-modulation devices (OL)
- Border Processing in Digital Holography by Extension of the Digital Hologram and Reduction of the Higher Spatial Frequencies (AO)
- Pattern Recognition with a Digital Holographic Microscope Working in Partially Coherent Illumination (AO)
- Penalized-likelihood image reconstruction for digital holography (JOSAA)
Related Conference Papers
- Holographic Implementation of Optical Multiple-Inputs, Multiple-Outputs (MIMO) on a Multimode Fiber
- How Can Computer-Generated Holograms Contribute to 3-D Imaging?
- Joint Image Encryption and Multiplexing by Use of Non-Negative Matrix Factorization Adopting Digital Holography
- Hilbert Transform by Optical Scanning Holography
- Acquisition of Information-Rich Images Using Synthetic-Aperture Digital Holography
OSA is a member of 