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Images are directional if horizontal pixels sequences have different statistical properties than vertical sequences.

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Directionality Matters

Benedikt Lorch and Rainer Böhme, "Landscape More Secure Than Portrait? Zooming Into the Directionality of Digital Images With Security Implications", USENIX Security Symposium, 2024. PDF

This repository contains the following code:

We used early versions of conseal to simulate steganography, and sealwatch for the feature-based steganalysis experiments.

Additionally, we provide the predictions for CNN-based experiments. While the paper only reports the accuracy, the predictions allow evaluating additional metrics, such as false positive and false negative rates.

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Images are directional if horizontal pixels sequences have different statistical properties than vertical sequences.

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