DocumentCode
2092873
Title
On visual cryptography schemes
Author
De Santis, Alfredo
Author_Institution
Dipt. di Inf. ed Applicazioni, Salerno Univ., Italy
fYear
1998
fDate
22-26 Jun 1998
Firstpage
154
Lastpage
155
Abstract
We consider visual cryptography schemes in which two pixels combine in an arbitrary way. We analyze the pixel expansion and the contrast of (2,n)-threshold visual cryptography schemes, that is schemes in which any pair of n shares can visually reconstruct the secret image, but any single share has no information on the secret image
Keywords
cryptography; image coding; image reconstruction; contrast; image reconstruction; pixel expansion; secret image; visual cryptography schemes; Boolean functions; Cryptography; Image analysis; Image reconstruction; Information analysis; Pixel; Polarization; Reconstruction algorithms; Stacking; Visual system;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory Workshop, 1998
Conference_Location
Killarney
Print_ISBN
0-7803-4408-1
Type
conf
DOI
10.1109/ITW.1998.706491
Filename
706491
Link To Document