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Image encryption and decryption using computer generated holography

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dc.contributor.advisor Alam, Dr. Md. Ashraful Istiaque, Md. Asif Mahi, Md. Mainul Islam Hasan, Syed Aousaf 2018-11-14T04:31:08Z 2018-11-14T04:31:08Z 2018 2018
dc.identifier.other ID 13101122
dc.identifier.other ID 14101183
dc.identifier.other ID 12201061
dc.description This thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Computer Science and Engineering, 2018. en_US
dc.description Cataloged from PDF version of thesis.
dc.description Includes bibliographical references (pages 48-49).
dc.description.abstract Holography is an optical technique to generate the interference pattern of the light field created from the interference of two coherent light sources, one being scattered from an object and another reference light being sent directly into the holographic plate. This interference pattern is then used in a 3D holographic display to view the holographic representation of the object. This is done by passing the same reference light through the interference pattern fringe in the 3D display. Computer Generated Holography (CGH) is a simulation technique to generate the same interference pattern without the object being present. Usually this is done by taking an image or a 3D representation of the object and using numerical techniques to simulate the interference pattern of the light field. CGH has many applications and one of them is image encryption and decryption. This paper describes how to generate a CGH of an image, how to overcome the general problems, namely the image overlapping problem during the reconstruction of the image from the interference pattern and how to encrypt an image and then decrypt it using the properties and principles of CGH. en_US
dc.description.statementofresponsibility Md. Asif Istiaque
dc.description.statementofresponsibility Md. Mainul Islam Mahi
dc.description.statementofresponsibility Syed Aousaf Hasan
dc.format.extent 49 pages
dc.language.iso en en_US
dc.publisher BRAC University en_US
dc.rights BRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Holography en_US
dc.subject Image encryption en_US
dc.subject Image decryption en_US
dc.subject.lcsh Image processing--Digital techniques.
dc.subject.lcsh Holography--Data processing.
dc.title Image encryption and decryption using computer generated holography en_US
dc.type Thesis en_US
dc.contributor.department Department of Computer Science and Engineering, BRAC University B. Computer Science and Engineering

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