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Enhance embedding capacity for switch map based multi-group EMD data hiding

  • Received: 01 January 2019 Accepted: 27 March 2019 Published: 19 April 2019
  • Exploiting Modification Direction (EMD) based data hiding achieves good stego-image quality and high security level. Recently, a section-wise EMD was proposed to enhance the embedding capacity of EMD. Later, Wang et al. introduced a switch map based multi-group EMD to further improve the embedding capacity. However, by a detail observation on the switch map in Wang et al.os scheme, we find that more codewords with longer code-length can be put into the switch map. In this paper, we build a new switch map by Huffman code, and construct an enhanced multi-group EMD using Huffman code based switch map. Our scheme has higher embedding capacity than Wang et al.os scheme and other EMD based data hiding methods.

    Citation: Yan-Xiao Liu , Ching-Nung Yang, Qin-Dong Sun. Enhance embedding capacity for switch map based multi-group EMD datahiding[J]. Mathematical Biosciences and Engineering, 2019, 16(5): 3382-3392. doi: 10.3934/mbe.2019169

    Related Papers:

  • Exploiting Modification Direction (EMD) based data hiding achieves good stego-image quality and high security level. Recently, a section-wise EMD was proposed to enhance the embedding capacity of EMD. Later, Wang et al. introduced a switch map based multi-group EMD to further improve the embedding capacity. However, by a detail observation on the switch map in Wang et al.os scheme, we find that more codewords with longer code-length can be put into the switch map. In this paper, we build a new switch map by Huffman code, and construct an enhanced multi-group EMD using Huffman code based switch map. Our scheme has higher embedding capacity than Wang et al.os scheme and other EMD based data hiding methods.


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  • © 2019 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
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