Title:
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Z2Z4-Additive Perdect Codes in Steganography
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Author:
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Rifà Pous, Helena; Ronquillo, Lorena; Rifà Coma, Josep
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Abstract:
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Steganography is an information hiding application which aims to
hide secret data imperceptibly into a cover object. In this paper, we describe a
novel coding method based on Z2Z4-additive codes in which data is embedded
by distorting each cover symbol by one unit at most (+-1-steganography). This
method is optimal and solves the problem encountered by the most e cient
methods known today, concerning the treatment of boundary values. The
performance of this new technique is compared with that of the mentioned
methods and with the well-known rate-distortion upper bound to conclude that
a higher payload can be obtained for a given distortion by using the proposed
method. |
Subject(s):
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-Stegranography -data hiding -codes -codis -ocultació d'informació -códigos -ocultación de datos |
Rights:
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http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article |
Published by:
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ADVANCES IN MATHEMATICS OF COMMUNICATIONS
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