Image size invariant visual cryptography for general access structures subject to display quality constraints.

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ID: 23362
2013
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Ranked #34 of 51 articles by views in ieee transactions on image processing : a publication of the ieee signal processing society

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Abstract
Conventional visual cryptography (VC) suffers from a pixel-expansion problem, or an uncontrollable display quality problem for recovered images, and lacks a general approach to construct visual secret sharing schemes for general access structures. We propose a general and systematic approach to address these issues without sophisticated codebook design. This approach can be used for binary secret images in non-computer-aided decryption environments. To avoid pixel expansion, we design a set of column vectors to encrypt secret pixels rather than using the conventional VC-based approach. We begin by formulating a mathematic model for the VC construction problem to find the column vectors for the optimal VC construction, after which we develop a simulated-annealing-based algorithm to solve the problem. The experimental results show that the display quality of the recovered image is superior to that of previous papers.
Reference Key
lee2013imageieee Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lee, Kai-Hui;Chiu, Pei-Ling;
Journal ieee transactions on image processing : a publication of the ieee signal processing society
Year 2013
DOI
10.1109/TIP.2013.2262290
URL
Keywords Keywords not found

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