Results 241 to 250 of about 1,969 (259)

On the Relation of Random Grid and Deterministic Visual Cryptography

IEEE Transactions on Information Forensics and Security, 2014
Alfredo De Santis, Roberto De Prisco
exaly  

Visual cryptography for gray-level images by dithering techniques

Pattern Recognition Letters, 2003
Wen-Hsiang Tsai
exaly  

Visual cryptography schemes with optimal pixel expansion

Theoretical Computer Science, 2006
Alfredo De Santis, Carlo Blundo, Stelvio Cimato   +2 more
exaly  

Improving the visual quality of size invariant visual cryptography scheme

Journal of Visual Communication and Image Representation, 2012
Chuankun Wu
exaly  

Visual Cryptography

2014
Asem Othman, Arun Ross
openaire   +1 more source

Progressive Visual Cryptography with Unexpanded Meaningful Shares

ACM Transactions on Multimedia Computing, Communications and Applications, 2016
Shivendra Shivani
exaly  

Visual Cryptography

2016
Paolo D’Arco, Roberto De Prisco
openaire   +1 more source

Using multi-ringed shadow image of visual cryptography to hide more secret messages

Imaging Science Journal, 2009
T-S Chen
exaly  

VISUAL CRYPTOGRAPHY

2020
openaire   +1 more source

Halftone visual cryptography

IEEE Transactions on Image Processing, 2006
Giovanni Di Crescenzo, G R Arce
exaly