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http://dx.doi.org/10.14372/IEMEK.2011.6.3.7

Optical Image Hiding Technique using Real-Valued Decoding Key  

Cho, Kyu-Bo (한국전자통신연구원)
Seo, Dong-Hoan (한국해양대학교 전기전자공학부)
Choi, Eun-chang (한국전자통신연구원)
Publication Information
IEMEK Journal of Embedded Systems and Applications / v.6, no.3, 2011 , pp. 168-173 More about this Journal
Abstract
In this paper, an optical image hiding technique using real-valued decoding key is proposed. In the embedding process, a each zero-padded original image placed in a quadrants on an input plane is multiplied by a statistically independent random phase pattern and is Fourier transformed. An encoded image is obtained by taking the real-valued data from the Fourier transformed image. And then a phase-encoded pattern, used as a hidden image and a decoding key, is generated by the use of multiple phase wrapping from the encoded images. A transmitted image is made from the linear superposition of the weighted hidden images and a cover image. In reconstruction process, the mirror reconstructed images can be obtained at two quadrants by the inverse-Fourier transform of the product of the transmitted image and the decoding key. Computer simulation and optical experiment are demonstrated in order to confirm the proposed technique.
Keywords
Image hiding; Real-valued decoding key; Phase wrapping rule;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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