Multiple-image hiding by information prechoosing

The information inevitably lost in multiple-image hiding is discarded in advance by the operation of prechoosing information before the hiding process; thus both fidelity and multiplexing capacity can be improved significantly. Various characters of each image provide a great many possibilities for...

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Bibliographic Details
Published in:Optics letters 2008-03, Vol.33 (6), p.542-544
Main Authors: Shi, Yishi, Situ, Guohai, Zhang, Jingjuan
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fourier optics
Fundamental areas of phenomenology (including applications)
Image forming and processing
Imaging and optical processing
Optics
Physics
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Description
Summary:The information inevitably lost in multiple-image hiding is discarded in advance by the operation of prechoosing information before the hiding process; thus both fidelity and multiplexing capacity can be improved significantly. Various characters of each image provide a great many possibilities for information prechoosing. The ideal low-pass filter presented with the matched encoding and hiding procedure may be one of the simplest examples of information prechoosing for generally used images. Computer simulations demonstrate its good performance, and the security is analyzed as well.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.33.000542