Sparsity and “Something Else”: An Approach to Encrypted Image Folding

James Bowley; Laura Rebollo-neira

doi:10.1109/LSP.2011.2106496

Sparsity and “Something Else”: An Approach to Encrypted Image Folding

Research output: Contribution to journal › Article › peer-review

Abstract

A property of sparse representations in relation to their capacity for information storage is discussed. It is shown that this feature can be used for an application that we term Encrypted Image Folding. The proposed procedure is realizable through any suitable transformation. In particular, in this paper we illustrate the approach by recourse to the Discrete Cosine Transform and a combination of redundant Cosine and Dirac dictionaries. The main advantage of the proposed technique is that both storage and encryption can be achieved simultaneously using simple processing steps.

Original language	English
Article number	5688290
Pages (from-to)	189-192
Number of pages	4
Journal	IEEE Signal Processing Letters
Volume	18
Issue number	3
DOIs	https://doi.org/10.1109/LSP.2011.2106496 https://doi.org/10.1109/LSP.2011.2106496
Publication status	Published - 17 Jan 2011

Bibliographical note

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

cryptography
dictionaries
discrete cosine transforms
phase shift keying
recurrent neural networks
encrypted image folding
mixed dictionaries
sparse representations

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Sparsity and "something else"
© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Cite this

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Sparsity and “Something Else”: An Approach to Encrypted Image Folding

Abstract

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