Journal
IEEE SIGNAL PROCESSING LETTERS
Volume 18, Issue 4, Pages 255-258Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSP.2011.2114651
Keywords
Image encryption; image recovery; reversible data hiding
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Funding
- Natural Science Foundation of China [61073190, 60872116, 60832010]
- Shanghai Rising-Star Program [10QH14011]
- Shanghai Education Committee [10ZZ59]
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This work proposes a novel reversible data hiding scheme for encrypted image. After encrypting the entire data of an uncompressed image by a stream cipher, the additional data can be embedded into the image by modifying a small proportion of encrypted data. With an encrypted image containing additional data, one may firstly decrypt it using the encryption key, and the decrypted version is similar to the original image. According to the data-hiding key, with the aid of spatial correlation in natural image, the embedded data can be successfully extracted and the original image can be perfectly recovered.
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