International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 110

Research Paper | Mathematics | India | Volume 3 Issue 3, March 2014


A (2, n) and (3, n) Visual Cryptography Scheme for Black and White Images

Maneesh Kumar [5] | Rahul Singh [7]


Abstract: A visual cryptography scheme (VCS) is a method to encode a secret image into shadow images called shares such that, certain qualified subsets of shares enable the visual recovery of the secret image. The visual recovery consists of xeroxing the shares onto transparencies, and then stacking them. The shares of a qualified set will reveal the secret image without any cryptographic computation. Here, we analyze the construction of k out of n visual cryptography schemes for black and white images (In such a scheme any k shares out of n will reveal the secret image, but any k -1 shares give no information about the image). The important parameters of a scheme are its contrast, i. e. , the clarity of the decoded image, and the number of pixels needed to encode one pixel of the original image. Some methods of construction of (2, n) -schemes having optimal relative contrast using Hadamard matrices and some combinatorial block designs have been discussed. We study the construction of an efficient (3, n) -scheme. We also study the construction of (3, n) -schemes using a design.


Keywords: Visual Cryptographic schemes, 2, n schemes, 3, n schemes


Edition: Volume 3 Issue 3, March 2014,


Pages: 574 - 577


How to Download this Article?

You Need to Register Your Email Address Before You Can Download the Article PDF


How to Cite this Article?

Maneesh Kumar, Rahul Singh, "A (2, n) and (3, n) Visual Cryptography Scheme for Black and White Images", International Journal of Science and Research (IJSR), Volume 3 Issue 3, March 2014, pp. 574-577, https://www.ijsr.net/get_abstract.php?paper_id=20131268

Similar Articles with Keyword '2'

Downloads: 169 | Weekly Hits: ⮙2 | Monthly Hits: ⮙4

Research Paper, Mathematics, Nigeria, Volume 6 Issue 8, August 2017

Pages: 1893 - 1895

Integer Linear Programming Applied to Nurses Rostering Problem

A. A. Maidamisa | H. A. Odiniya [3]

Share this Article

Downloads: 185 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper, Mathematics, China, Volume 9 Issue 7, July 2020

Pages: 1277 - 1281

Different Numerous Systems Correspond to Different Universes: Revealing the Secret behind Nikola Tesla Code of 3, 6, 9

Tao Jia [14]

Share this Article
Top