請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/36327
標題: Adaptive DE-based reversible steganographic technique using bilinear interpolation and simplified location map
作者: Liu, Yu-Chi
Wu, Hsien-Chu
Yu, Shyr-Shen
關鍵字: Reversible steganographic technique
difference expansion
Bilinear
interpolation
difference expansion
摘要: In this paper, an adaptive DE-based reversible steganographic scheme with bilinear interpolation and simplified location map is proposed. In traditional reversible difference expansion (DE) scheme, it suffers from two problems: the embeddable location is considered insufficient and the embedding payload control capability in single layer embedding is weak. For the first problem, the kernel of bilinear interpolation is applied to effectively improve the number of the embeddable location while the quality of the stego-image can be maintained at a good level. In addition, the proposed simplified location map is used for the existing adaptive embedding rule to improve the second problem where the secret data can be adaptively embedded and also the load of additional information can be reduced. The experimental results revealed that the proposed scheme presented better visual quality of the stego-image and carried larger embedding payload than some other revised DE schemes, such as Alattar's and Lee's schemes.
URI: http://hdl.handle.net/11455/36327
ISSN: 1380-7501
顯示於類別:應用數學系所

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