Results 21 to 30 of about 3,551 (300)
Watermarking Scheme Based on Wavelet Transformation and Visual Cryptography [PDF]
, 2014 NSC101-2221-E-032-047Based on the principles of the visual cryptography and the law of large numbers, the unexpanded shares are generated during the processes of embedding and verifying the hidden watermark.
Wei, Shih-Chieh +1 more
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Boolean Operation Based Visual Cryptography
IEEE Access, 2019 A ( $k$ , $n$ )-Traditional Visual Cryptographic Scheme (VCS) based on basis matrices encoded a secret image into $n$ shadow images distributed among $n$ participants.
Zhili Zhou +3 more
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An Enhanced Approach of Image Steganographic Using Discrete Shearlet Transform and Secret Sharing
مجلة بغداد للعلوم, 2022 Recently, the internet has made the users able to transmit the digital media in the easiest manner. In spite of this facility of the internet, this may lead to several threats that are concerned with confidentiality of transferred media contents such as ...
Yasir Ahmed Hamza +2 more
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IET Information Security, 2021 Researchers have put forward many variations of schemes for secret image sharing on grounds of visual cryptography and polynomials. The authors of this paper put forward a novel scheme for sharing multiple secret images with perfect reconstruction and ...
Krishnaraj Bhat +3 more
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Alternative product authentication system using visual cryptography
Semina: Ciências Exatas e Tecnológicas, 2020 Fraud and counterfeiting have caused various inconveniences to manufacturers and the product consumer market. To avoid counterfeiting and, therefore, bring a higher level of trust and security in commercial transactions, several authentication techniques
Rodrigo dos Santos Cicareli +1 more
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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
openaire +3 more sources
Threshold Visual Cryptography Schemes With Tagged Shares
IEEE Access, 2020 The appearance of shares encoded by traditional visual cryptography is not easy to distinguish and meaningless. It means the shares cannot be managed efficiently nor user-friendly. A tagged visual cryptography scheme (TVCS) provides additional tag images
Pei-Ling Chiu, Kai-Hui Lee
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A Lightweight Privacy-Preserving System for the Security of Remote Sensing Images on IoT
Remote Sensing, 2022 The acquisition of massive remote sensing data makes it possible to deeply fuse remote sensing and artificial intelligence (AI). The mobility and cost advantages of new sensing platforms in the Internet of Things (IoT) make them ideal for continuous ...
Denghui Zhang +3 more
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Visual cryptography scheme on graphs with $m^{*}(G)=4$ [PDF]
Transactions on Combinatorics, 2019 Let $G=(V,E)$ be a connected graph and $\Gamma (G)$ be the strong access structure where obtained from graph $G$. A visual cryptography scheme (VCS) for a set $P$ of participants is a method to encode a secret image such that any pixel of this image ...
Mahmood Davarzani
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Progressive Visual Cryptography With Unexpanded Shares
, 2012 The basic (k, n)-threshold visual cryptography scheme is to share a secret image with n participants. The secret image can be recovered while stacking k or more shares obtained; but we will get nothing if there are less than k pieces of shares being ...
Hou, Young-Chang; Quan, Zen-Yu
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