Detection of LSB steganography via sample pair analysis
IEEE Transactions on Signal Processing
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MM&Sec '05 Proceedings of the 7th workshop on Multimedia and security
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IH'07 Proceedings of the 9th international conference on Information hiding
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IH'07 Proceedings of the 9th international conference on Information hiding
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IEEE Transactions on Information Forensics and Security
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IH'05 Proceedings of the 7th international conference on Information Hiding
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IH'05 Proceedings of the 7th international conference on Information Hiding
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CMS'06 Proceedings of the 10th IFIP TC-6 TC-11 international conference on Communications and Multimedia Security
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IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
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IH'12 Proceedings of the 14th international conference on Information Hiding
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Pattern Recognition Letters
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This paper presents a fast algorithm to detect the least significant bit (LSB) steganography. Our approach is inspired by the work of Dumitrescu et al.[1] who detected LSB steganography via sample pair analysis. Our new algorithm combines with the statistical measures developed in [1] and a new least square estimation. The motivation comes from the high accuracy and robustness of the least square method used in parameter estimation. Plentiful experimental results show that our novel method has much lower false alarm rate of 5% than that of 13.79% in [1]. Meanwhile, the estimating precision of our algorithm is about 9% higher than that of the algorithm [1] if the embedding ratio is less than 10%, and the speed of our algorithm is also about 15% faster than the algorithm [1]. Some theoretical derivations are also included.