Image Size Invariant Visual Cryptography for General Access Structures Subject to Display Quality Constraints

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 addr...

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Veröffentlicht in:IEEE transactions on image processing Jg. 22; H. 10; S. 3830 - 3841
Hauptverfasser: Lee, Kai-Hui, Chiu, Pei-Ling
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.10.2013
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Algorithms
Applied sciences
Construction
controllable display quality
Cryptography
Design engineering
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
general access structures
Image processing
Image quality
Information, signal and communications theory
Maintenance
Mathematical analysis
Mathematical models
Optimization
pixel expansion
Pixels
Signal and communications theory
Signal processing
Signal, noise
Systematics
Telecommunications and information theory
Vectors
Vectors (mathematics)
Visual
Visual secret sharing scheme
Visualization
Encryption
Decryption
Optimization
Image quality
general access structures
Visual secret sharing scheme
Codebook
pixel expansion
Simulated annealing
Security of data
controllable display quality
Binary image
Secret sharing
Cryptography
Computer aid
ISSN:1057-7149, 1941-0042, 1941-0042
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung: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.
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ISSN:1057-7149
1941-0042
1941-0042
DOI:10.1109/TIP.2013.2262290