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| Titel: |
Codebook Partition Based Steganography without Member Restriction |
| Auteur: |
Chiang, Yung-Kuei Tsai, Piyu Huang, Feng-Long |
| Verschenen in: |
Fundamenta informaticae |
| Paginering: | Jaargang 82 (2008) nr. 1-2 pagina's 15-27 |
| Jaar: |
2008-01-15 |
| Inhoud: |
The practice of concealing secret messages into index-based images has generally suffered from problems of image quality degradation and hiding capacity restriction. A steganographic scheme using an improved codebook partition is proposed in this paper. The proposed scheme partitions the codebook into different member sub-clusters in terms of their similarity between the codewords for increasing the hiding capacity and reducing the image distortion. Any size of a subcluster was allowed in the proposed scheme, so as to improve the traditional approaches in which the size of a sub-cluster was restricted to the power of two. As a result of this revised scheme, an increased hiding capacity and a reduction in image distortion are obtained, as indicated from experimental results. The average performance of the proposed scheme is superior to that of those standard methods. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 13 gevonden artikelen
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