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dc.identifier.citationGatt, A. (2012). Data hiding in compressed images (Master's dissertation).en_GB
dc.description.abstractApart from the obvious ethical issues, digital information manipulation poses security issues. Ensuring an omnipresent balance amongst the security triad of confidentiality, integrity and especially availability is not a trivial feat. More than often compromises need to be done which risk jeopardizing digital content. This dissertation brings together work done by various senior researchers in the last ten years in the fields of data hiding, authentication and tampering localization. Various facets, such as reversibility and fragility are reviewed. Though most of the algorithms relate to the spatial domain, a few appertain to other domains, through the use of frequency and wavelet transforms. Several algorithms are actually implemented as proposed by their originators whilst others are incorporated as the basic processor on which a higher level algorithm can be built. A graphical user interface was also developed to demonstrate the resulting transformations and to enable the analyses and comparison of certain widely agreed metrics.en_GB
dc.subjectComputer algorithmsen_GB
dc.subjectDigital watermarking -- Maltaen_GB
dc.subjectComputer security -- Maltaen_GB
dc.titleData hiding in compressed imagesen_GB
dc.rights.holderThe copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.en_GB
dc.publisher.institutionUniversity of Maltaen_GB
dc.publisher.departmentFaculty of Information and Communication Technologyen_GB
dc.contributor.creatorGatt, Alessio (2012)-
Appears in Collections:Dissertations - FacICT - 2012

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