
Proceedings Paper
An image hiding method based on cascaded iterative Fourier transform and public-key encryption algorithmFormat | Member Price | Non-Member Price |
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Paper Abstract
An image hiding method based on cascaded iterative Fourier transform and public-key encryption
algorithm was proposed. Firstly, the original secret image was encrypted into two phase-only masks
M1 and M2 via cascaded iterative Fourier transform (CIFT) algorithm. Then, the public-key
encryption algorithm RSA was adopted to encrypt M2 into M2' . Finally, a host image was
enlarged by extending one pixel into 2×2 pixels and each element in M1 and M2' was
multiplied with a superimposition coefficient and added to or subtracted from two different elements in
the 2×2 pixels of the enlarged host image. To recover the secret image from the stego-image, the
two masks were extracted from the stego-image without the original host image. By applying
public-key encryption algorithm, the key distribution was facilitated, and also compared with the image
hiding method based on optical interference, the proposed method may reach higher robustness by
employing the characteristics of the CIFT algorithm. Computer simulations show that this method has
good robustness against image processing.
Paper Details
Date Published: 29 April 2013
PDF: 7 pages
Proc. SPIE 8748, Optical Pattern Recognition XXIV, 87480H (29 April 2013); doi: 10.1117/12.2018257
Published in SPIE Proceedings Vol. 8748:
Optical Pattern Recognition XXIV
David Casasent; Tien-Hsin Chao, Editor(s)
PDF: 7 pages
Proc. SPIE 8748, Optical Pattern Recognition XXIV, 87480H (29 April 2013); doi: 10.1117/12.2018257
Show Author Affiliations
Mohammad S. Alam, Univ. of South Alabama (United States)
Published in SPIE Proceedings Vol. 8748:
Optical Pattern Recognition XXIV
David Casasent; Tien-Hsin Chao, Editor(s)
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