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  Simple algorithmic modifications for improving blind steganalysis performance

Schwamberger, V., & Franz, M. (2010). Simple algorithmic modifications for improving blind steganalysis performance. In P. Campisi, J. Dittmann, & S. Craver (Eds.), MM&Sec '10: Proceedings of the 12th ACM workshop on Multimedia and security (pp. 225-230). New York, NY, USA: ACM Press.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-BE72-1 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0002-80D3-E
Genre: Konferenzbeitrag

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externe Referenz:
https://dl.acm.org/citation.cfm?doid=1854229.1854268 (Verlagsversion)
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 Urheber:
Schwamberger, V1, 2, Autor           
Franz, MO, Autor           
Affiliations:
1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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Schlagwörter: -
 Zusammenfassung: Most current algorithms for blind steganalysis of images are based on a two-stages approach: First, features are extracted in order to reduce dimensionality and to highlight potential manipulations; second, a classifier trained on pairs of clean and stego images finds a decision rule for these features to detect stego images. Thereby, vector components might vary significantly in their values, hence normalization of the feature vectors is crucial. Furthermore, most classifiers contain free parameters, and an automatic model selection step has to be carried out for adapting these parameters. However, the commonly used cross-validation destroys some information needed by the classifier because of the arbitrary splitting of image pairs (stego and clean version) in the training set. In this paper, we propose simple modifications of normalization and for standard cross-validation. In our experiments, we show that these methods lead to a significant improvement of the standard blind steganalyzer of Lyu and Farid.

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 Datum: 2010-09
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1145/1854229.1854268
BibTex Citekey: 6788
 Art des Abschluß: -

Veranstaltung

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Titel: 12th ACM Workshop on Multimedia and Security (MMSec 2010)
Veranstaltungsort: Roma, Italy
Start-/Enddatum: 2010-09-09 - 2010-09-10

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Quelle 1

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Titel: MM&Sec '10: Proceedings of the 12th ACM workshop on Multimedia and security
Genre der Quelle: Konferenzband
 Urheber:
Campisi, P, Herausgeber
Dittmann, J, Herausgeber
Craver, S, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: New York, NY, USA : ACM Press
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 225 - 230 Identifikator: ISBN: 978-1-4503-0286-9