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Data hiding in 2-color images

Tseng, Yu-Chee ; Pan, Hsiang-Kuang

IEEE transactions on computers, 2002-07, Vol.51 (7), p.873-880 [Periódico revisado por pares]

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Título:
Data hiding in 2-color images
Autor: Tseng, Yu-Chee ; Pan, Hsiang-Kuang
Assuntos: Blocking ; Computer Society ; Cryptography ; Data encapsulation ; Data security ; Image quality ; Information security ; Information services ; Pixel ; Steganography ; Web sites
É parte de: IEEE transactions on computers, 2002-07, Vol.51 (7), p.873-880
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: In an earlier paper (Chen et al., 2000), we proposed a steganography scheme for hiding a piece of critical information in a host binary image. That scheme ensures that, in each m /spl times/ n image block of the host image, as many as [log/sub 2/ (mn + 1)] bits can be hidden in the block by changing at most 2 bits in the block. We propose a new scheme that improves (Chen et al., 2000) in its capability to maintain higher quality of the host image after data hiding by sacrificing some data hiding space. The new scheme can still offer a good data hiding ratio. It ensures that, for any bit that is modified in the host image, the bit is adjacent to another bit which has a value equal to the former's new value. Thus, the hiding effect is quite invisible.
Editor: New York: IEEE
Idioma: Inglês

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