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A New Approach for Visual Cryptography
Designs, Codes and Cryptography, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wen-Guey Tzeng, Chi-Ming Hu
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Improved Schemes for Visual Cryptography
Designs, Codes and Cryptography, 2001A visual cryptography scheme (VCS) for a set of \(n\) participants is a technique to encode a secret image into \(n\) shadow images (also called shares or transparencies) where each participant receives one share with the property that certain sets of \(k\) or more of the shares allow the complete visual recovery of the image by stacking the ...
BLUNDO, Carlo +2 more
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Randomness in Visual Cryptography
2000A visual cryptography scheme for a set P of n participants is a method to encode a secret image into n shadow images called shares each of which is given to a distinct participant. Certain qualified subsets of participants can recover the secret image, whereas forbidden subsets of participants have no information on the secret image.
DE BONIS, Annalisa, DE SANTIS, Alfredo
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Probabilistic Visual Cryptography Schemes
The Computer Journal, 2005Visual cryptography schemes allow the encoding of a secret image, consisting of black or white pixels, into n shares which are distributed to the participants. The shares are such that only qualified subsets of participants can 'visually' recover the secret image.
Stelvio Cimato +2 more
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On the Contrast in Visual Cryptography Schemes
Journal of Cryptology, 1999A visual cryptography scheme (VCS) for a set \(\mathcal{P}\) of \(n\) participants is a method to encode a secret image \(SI\) into shadow images, called shares, where each participant in \(\mathcal{P}\) receives one share. Certain qualified subsets of participants can visually recover the image but other, forbidden sets have no information on the ...
BLUNDO, Carlo +2 more
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An overview of visual cryptography techniques
Multimedia Tools and Applications, 2021Visual cryptography is an encryption technique that decomposes secret images into multiple shares. These shares are digitally or physically overlapped to recover the original image, negating the need for complex mathematical operations or additional hardware.
Dyala R. Ibrahim +2 more
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Visual Cryptography Based Watermarking
2014The combination of watermarking schemes with visual cryptography has been recently used for the copyright protection of digital images. The derived schemes try to satisfy the increasing need for the security of multimedia data, caused in turn by the enormous amount of digital information that is daily created and distributed over different kinds of ...
Stelvio Cimato +2 more
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2D Barcodes for visual cryptography
Multimedia Tools and Applications, 2014The basic idea of Visual Cryptography (VC) is to divide a secret image into several partitions which are called VC shares. With various categories of VC schemes having been developed to enhance the maturity of VC since its emergence, one of obsessions in current investigations of VC is that each VC share lacks authentication.
Guangyu Wang +2 more
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Quantum meaningful visual cryptography
Quantum Information Processing, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Meng-Yuan Zhao +3 more
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Image Hatching for Visual Cryptography
2009 13th International Machine Vision and Image Processing Conference, 2009Image hatching (or non-photorealistic line-art) is a technique widely applied in the printing or engraving of currency. Diverse styles of brush strokes have previously been adopted for different areas of an image to create textures and shading. Because there is no continuous tone within these types of images, we propose a multi-level scheme, which uses
Jonathan Weir, Wei Qi Yan 0001
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