Abstract
Least significant bit matching revisited steganography (LSBMR) is a significant improvement of the well-known least significant bit matching algorithm. In this paper, we point out that LSBMR for consecutive pixels and its descendants, including the edge adaptive image steganography based on LSBMR, introduces intrinsic statistical imbalance in secret data embedding process, which results in the imbalance of the power of the additive stegonoise. This intrinsic imbalance can be used to construct a dimensionless discriminator using B-spline smoothing. Experimental results show that the proposed steganalytic method is a reliable detector against LSBMR for consecutive pixels and the edge adaptive image steganography based on LSBMR when block size is 1. An embedding rate estimator based on B-spline functions which can roughly estimate the embedding rate is proposed as well.
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Tan, S. (2012). Steganalysis of LSB Matching Revisited for Consecutive Pixels Using B-Spline Functions. In: Shi, Y.Q., Kim, HJ., Perez-Gonzalez, F. (eds) Digital Forensics and Watermarking. IWDW 2011. Lecture Notes in Computer Science, vol 7128. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32205-1_4
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DOI: https://doi.org/10.1007/978-3-642-32205-1_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-32204-4
Online ISBN: 978-3-642-32205-1
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