Hybrid secret hiding schemes based on absolute moment block truncation coding |
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| Authors: | Ying-Hsuan Huang Ching-Chun Chang Yi-Hui Chen |
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| Affiliation: | 1.Aeronautical Research Laboratory,National Chung-Shan Institute of Science and Technology,Taichung,Taiwan;2.Department of Computer Science,University of Warwick,Conventry,UK;3.Department of M-Commerce and Multimedia Applications,Asia University,Taichung,Taiwan;4.Department of Medical Research, China Medical University Hospital,China Medical University,Taichung,Taiwan |
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| Abstract: | This paper presents two secret hiding schemes based on absolute moment block truncation coding (AMBTC). One is for embedding secrets into complex blocks and the other one is for smooth blocks. As for the smooth blocks, the small variation of the block is adopted to define the embedding rule to minimize the distortion after data embedding. As for the complex blocks, the large variation of the block is used to embed more secrets while maintaining good visual quality. In the experiments, when compared to Ou and Sun’s scheme, the positive data is to confirm the higher capacity while preserving better visual quality. |
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