Steganalysis of Content-Adaptive Steganography Based on Massive Datasets Pre-Classification and Feature Selection

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Abstract

For current steganalysis of the image content-adaptive steganography, there are multiple problems to be improved, such as high difficulty and low accuracy, when detecting images with various contents and textures. For this problem, an improved steganalytic method is proposed in this paper based on the pre-classification and feature selection. First, using the features extracted based on the dependency analysis of image adjacent data, the images with various content and texture complexities are pre-classified as multiple clusters by the K-means algorithms. Then, the performance of existing various steganalytic features are analyzed for different clusters of images, and the optimal features for each cluster are selected for final classification. The experimental results show that the detection accuracy could be improved by the proposed method, and the rationality and availability are also verified. At the same time, the analysis and experimental results in this paper also show that the images with rich content and complex texture should be paid more attention both in steganography and in steganalysis.

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Lu, J., Zhou, G., Yang, C., Li, Z., & Lan, M. (2019). Steganalysis of Content-Adaptive Steganography Based on Massive Datasets Pre-Classification and Feature Selection. IEEE Access, 7, 21702–21711. https://doi.org/10.1109/ACCESS.2019.2896781

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