36 search results - page 6 / 8 » Halftone visual cryptography |
JDCTA
2010
13 years 3 months ago
2010
In visual cryptography, the secret can be any written text, graphical representation, or picture. This technique, some time called visual secret sharing (VSS), allows visual infor...
SIGGRAPH
1999
ACM
14 years 26 days ago
1999
ACM
A multi-color dithering algorithm is proposed, which converts a barycentric combination of color intensities into a multi-color nonoverlapping surface coverage. Multi-color dither...
ACNS
2006
Springer
14 years 2 months ago
2006
Springer
The visual secret sharing (VSS for short) scheme is a secret image sharing scheme. A secret image is visually revealed from overlapping shadow images without additional computation...
SAT
2009
Springer
14 years 3 months ago
2009
Springer
Cryptography ensures the confidentiality and authenticity of information but often relies on unproven assumptions. SAT solvers are a powerful tool to test the hardness of certain ...
JISE
2008
13 years 8 months ago
2008
This paper solves the visual cryptography problem by the Blakley scheme that is a geometry-based secret sharing strategy. We first partition the protected image into non-overlappi...