Results 41 to 50 of about 2,287,880 (206)
Bounds for visual cryptography schemes
Discrete Applied Mathematics, 2010 In this paper, we investigate the best pixel expansion of the various models of visual cryptography schemes. In this regard, we consider visual cryptography schemes introduced by Tzeng and Hu [13]. In such a model, only minimal qualified sets can recover the secret image and that the recovered secret image can be darker or lighter than the background ...
Hajiabolhassan, Hossein, Cheraghi, Abbas
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Visual cryptography in single-pixel imaging [PDF]
Optics Express, 2019 Two novel visual cryptography (VC) schemes are proposed by combining VC with single-pixel imaging (SPI) for the first time. It is pointed out that the overlapping of visual key images in VC is similar to the superposition of pixel intensities by a single-
Shuming Jiao +4 more
semanticscholar +1 more source
Extended capabilities for visual cryptography
Theoretical Computer Science, 2001 An extended visual cryptography scheme, for an access structure \((\Gamma_{Qual},\Gamma_{Forb})\) on a set of \(n\) participants, is a technique to encode \(n\) images in such a way that when we stack together the transparencies associated to participants in any set \(X \in \Gamma_{\text{Qual}}\) we get the secret message with no trace of the original ...
BLUNDO, Carlo +3 more
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Biometric Security Through Visual Encryption for Fog Edge Computing
IEEE Access, 2017 Fog and mobile edge computing have gained considerable attention from the research and development community. The problems related to security and privacy of biometric content are simpler to solve through edge computing resulting in improved security and
Wadood Abdul +5 more
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Secure E-Voting System Using Visual Cryptography & Block Chain Ledger
Turkish Journal of Computer and Mathematics Education, 2021 Expanding advanced innovation has revolutionized the life of individuals. In this digital world many countries are trying to initiate an E-voting system in regular election process.
Ashwini S Solankar
semanticscholar +1 more source
Effect of Dual Reinforcement on Wear Resistance by Aluminum Compacts Reinforce by SiC, Al2O3 [PDF]
Engineering and Technology Journal, 2009 The producing composite materials of dual reinforcement in which the matrix material is aluminum reinforced with two types of ceramic particles : which are Alumina (50μmKeywordscomposite materials; wear test ; Al2O3; SiC ...
Mohammed Waheed, Hassan Abed
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All-optical vector visual cryptography with high security and rapid decryption
Opto-Electronic Advances, 2023 Meta optics-empowered vector visual cryptography at the abundant degrees of freedom of light and spatial dislocation can open an avenue for optical information security and anti-counterfeiting with a compact footprint and rapid decryption.
Zhekun Chen, Minghui Hong
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Journal of Communications Software and SystemsThe growing reliance on digital technologies demands an urgent advancement of a secure framework for remote voting systems. This paper proposes a novel e-voting framework which is reinforced by a combination of visual cryptography, elliptic curve ...
Gaurav Thakur +3 more
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Hybrid Techniques for Proposed Intelligent Digital Image Watermarking [PDF]
Engineering and Technology Journal, 2015 Digital watermarking provides a solution of the recent problems such as a copyright protection and digital content authentication, as well as the balancing between the copyright protection and authentication requirements are the challenge of the many ...
Bashar S Mahdi, Alia K. Abdul Hassan
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Colored visual cryptography without color darkening
Theoretical Computer Science, 2005 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
S. CIMATO +2 more
openaire +4 more sources