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Data Hiding via Steganographic Image Transformation

Shuichi TAKANO, Kiyoshi TANAKA, Tatsuo SUGIMURA

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Summary :

This paper presents a new data hiding scheme via steganographic image transformation, which is different from conventional data hiding techniques. The transformation is achieved in the frequency domain and the concept of Fourier filtering method is used. An input image is transformed into a fractal image, which can be used in Computer Graphic (CG) applications. One of the main advantages of this scheme is the amount of data to be hidden (embedded) is equal to that of the host signal (generated fractal image) while it is in general limited in the conventional data hiding schemes. Also both the opened fractal image and the hidden original one can be properly used depending on the situation. Unauthorized users will not notice the "secret" original image behind the fractal image, but even if they know that there is a hidden image it will be difficult for them to estimate the original image from the transformed image. Only authorized users who know the proper keys can regenerate the original image. The proposed method is applicable not only as a security tool for multimedia contents on web pages but also as a steganographic secret communication method through fractal images.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E83-A No.2 pp.311-319
Publication Date
2000/02/25
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Section on Intelligent Signal and Image Processing)
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