）istortion-Free Data Embedding Scheme for Hig Dynamic Range Images |
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| Authors: | Chin ChenChang Thai SonNguyen Chia ChenLin |
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| Affiliation: | 1.Department of Information Engineering and Computer Science,Feng Chia University,Taichung 40724,Taiwan;2.Department of Computer Science and Information Engineering,Asia University,Taichung 41354,Taiwan;3.Department of Information Technology,Tra Vinh University,TràVinh City,TràVinh;4.Department of Computer Science and Information Management,Providence University,Taichung 43301,Taiwan |
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| Abstract: | Distortion-free data embedding is a technique which can assure that not only the secret data is correctly extracted but also the cover media is recovered without any distortion after secret data is extracted completely. Because of these advantages, this technique attracts the attention of many researchers. In this paper, a new distortion-free data embedding scheme for high dynamic range (HDR) images is proposed. By depending on Cartesian product, this scheme can obtain higher embedding capacity while maintaining the exactly identical cover image and stego image when using the tone mapping algorithms. In experimental results, the proposed scheme is superior to Yu et al.'s scheme in regard to the embedding rate-an average embedding rate of 0.1355 bpp compared with Yu et al.'s scheme (0.1270 bpp). |
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| Keywords: | Data hiding distortion free high dynamic range image high embedding rate stegano-graphy |
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