Abstract
This paper proposes an extension of DCT-based Mod4 steganographic method to realize multiple messages embedding (MME). To implement MME, we utilize the structural feature of Mod4 that uses vGQC ( valid group of 2 ×2 adjacent quantized DCT coefficients) as message carrier. vGQC’s can be partitioned into several disjoint sets by differentiating the parameters where each set could serve as an individual secret communication channel. A maximum number of 14 independent messages can be embedded into a cover image without interfering one message and another. We can generate stego images with image quality no worse than conventional Mod4. Results for blind steganalysis are also shown.
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Wong, K., Tanaka, K., Qi, X. (2006). Multiple Messages Embedding Using DCT-Based Mod4 Steganographic Method. In: Gunsel, B., Jain, A.K., Tekalp, A.M., Sankur, B. (eds) Multimedia Content Representation, Classification and Security. MRCS 2006. Lecture Notes in Computer Science, vol 4105. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11848035_10
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DOI: https://doi.org/10.1007/11848035_10
Publisher Name: Springer, Berlin, Heidelberg
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