Extended visual cryptography for color images using coding tables

Author

Kamath, Meera ; Parab, Arpita ; Salyankar, Aarti ; Dholay, Surekha

Author_Institution

Comput. Eng. Dept., Sardar Patel Inst. of Technol., Mumbai, India

fYear

2012

fDate

19-20 Oct. 2012

Firstpage

1

Lastpage

6

Abstract

Visual cryptography (VC) schemes encrypt a secret image into two or more cover images, called shares. The secret image can be reconstructed by stacking the shares together, with no complex cryptographic calculations. This paper proposes a new VC scheme for color images. The shares generated are similar to the cover images, thereby reducing the suspicion of data encryption. The proposed scheme makes use of Jarvis error filter, a key table and specialized tables for coding. High visual quality is achieved as up to 50 percent of the secret image can be recovered.

Keywords

cryptography; image coding; image colour analysis; Jarvis error filter; VC; coding tables; color images; data encryption; extended visual cryptography; secret image; specialized tables; visual quality; Color; Computers; Cryptography; Image coding; Image color analysis; Stacking; Visualization; Coding table; Cover Image; Jarvis Error Filter; Key Table; Meaningful Share; Secret Image; Stacking; Visual Cryptography;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication, Information & Computing Technology (ICCICT), 2012 International Conference on

Conference_Location

Mumbai

Print_ISBN

978-1-4577-2077-2

Type

conf

DOI

10.1109/ICCICT.2012.6398090

Filename

6398090