Downloads

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Steganography

• Steganographic Algorithms
• Syndrome-Trellis Codes Toolbox
• Steganography Design
• Gibbs Construction in Steganography
• Simulator of nsF5
• Perturbed Quantization

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Steganalysis

• Feature Extractors
• Are we there yet?
• Ensemble Classifier
• Low-complexiy Linear Classifier
• LRT Linear Classifier
• Histogram Layer
• Explicit Feature Maps
• SPAM features
• Extractor of 274/548 Merged Features
• Structural LSB Detectors
• Quantitative Steganalysis Using Rich Models

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Digital Forensics

• Camera Fingerprint

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Image Database

• BOSSbase 1.01

Perturbed Quantization

Description

On this page, you can download a MATLAB implementation of the Perturbed Quantization (PQ) steganography. It includes both original PQ [1] and its modified versions PQt and PQe as described in [2]. Detailed information about the installation and the usage can be found in the enclosed Readme file.

Disclaimer

This program is available for public use. Please, do not forget to give us credit by citing either this webpage or the appropriate publication.

Thank you.

Contact

• Jessica Fridrich - fridrich (at) binghamton (dot) edu
• Jan Kodovský - jan (dot) kodovsky (at) binghamton (dot) edu

Download

• ZIP file: [ PQ_matlab.zip ]
• tar.gz file: [ PQ_matlab.tar.gz ]

References

[1] J. Fridrich, M. Goljan, and D. Soukal, Perturbed quantization steganography. ACM Multimedia System Journal, 11(2):98–107, 2005. [ paper ], [ bib ]

[2] J. Fridrich, T. Pevny, and J. Kodovsky, Statistically undetectable JPEG steganography: Dead ends, challenges, and opportunities. Proceedings of the 9th ACM Multimedia & Security Workshop, pages 3-14, Dallas, TX, September 20-21, 2007. [ paper ], [ bib ]