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2008 International Conference on Advanced Computer Theory and Engineering, 2008
In this paper, we propose a Visual Cryptographic system which can be used to hide the original image information from an intruder or an unwanted user. The images can be in any standard format. The encrypted image is sent to the destination through the network and then the image is decrypted. We have used Symmetric-key cryptography.
null Ashutosh, Sayan Dev Sen
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In this paper, we propose a Visual Cryptographic system which can be used to hide the original image information from an intruder or an unwanted user. The images can be in any standard format. The encrypted image is sent to the destination through the network and then the image is decrypted. We have used Symmetric-key cryptography.
null Ashutosh, Sayan Dev Sen
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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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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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Region Incrementing Visual Cryptography
IEEE Signal Processing Letters, 2009This letter presents a novel visual cryptography scheme, called region incrementing visual cryptography (RIVC), for sharing visual secrets with multiple secrecy levels in a single image. In the proposed n-level RIVC scheme, the content of an image S is designated to multiple regions associated with n secret levels, and encoded to n+1 shares with the ...
Ran-Zan Wang
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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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Image hatching for visual cryptography
ACM Transactions on Multimedia Computing, Communications, and Applications, 2012Image hatching (or nonphotorealistic line-art) is a technique widely used in the printing or engraving of currency. Diverse styles of brush strokes have previously been adopted for different areas of an image to create aesthetically pleasing textures and shading.
Jonathan Weir +2 more
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Visual cryptography: A brief survey
Information Security Journal: A Global Perspective, 2017Visual cryptography is an emerging technology to address the concerns regarding privacy of images.
P. Punithavathi, S. Geetha 0001
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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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