A Novel Visual Cryptography Scheme

Visual cryptography is a new cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decryption can be performed by human, without any decryption algorithm. Here we propose a data hiding in halftone images using conjugate ordered ditherin...

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Bibliographic Details
Published in2009 International Conference on Advanced Computer Control pp. 207 - 211
Main Authors Jena, D., Jena, S.K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2009
Subjects
Computer science
Computer science education
Control engineering education
Cryptography
Data encapsulation
DHCED and DHCOD
Educational technology
Halftone images
Humans
Printing
Secret shares
VCS
Visual cryptography
Visual system
Watermarking
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ISBN9781424433308
076953516X
9780769535166
1424433304
DOI10.1109/ICACC.2009.109

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Summary:Visual cryptography is a new cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decryption can be performed by human, without any decryption algorithm. Here we propose a data hiding in halftone images using conjugate ordered dithering (DHCOD) algorithm which is a modified version of data hiding in halftone images using conjugate error diffusion technique (DHCED). We use this DHOCD algorithm for proposing a new three phase visual cryptography scheme. DHCOD technique is used to hide an binary visual pattern in two or more ordered dither halftone images, which can be from the same or different multi-tone images. In proposed scheme we shall generate the shares using basic visual cryptography model and then embed them into a cover image using a DHCOD technique, so that the shares will be more secure and meaningful.
ISBN:9781424433308
076953516X
9780769535166
1424433304
DOI:10.1109/ICACC.2009.109