New Approach of Visual Cryptography Scheme for Hiding Color Images

Katta Swamy Mergu

Cryptography is the science of hiding information. The word is derived from the Greek kryptos meaning hidden. Visual Cryptography is a special type of encryption technique which is used to hide the information and data in images. In this technique the decryption process is done without any complex cryptographic computation. The encrypted data is decrypted using Human Visual System (HVS). This is the benefit of the visual secret sharing scheme. Visual Cryptography, introduced by Naor and Shamir in 1995. This paper presents an improved algorithm based on Chang’s and Yu visual cryptography scheme for hiding a colored image into multiple colored cover images. This scheme achieves lossless recovery and reduces the noise in the cover images without adding any computational complexity.

Select Volume / Issues:

• Volume 3 Issue 6, Nov. 2012

Year:

2012

Type of Publication:

Article

Keywords:

Image processing; visual Cryptography; secret sharing

Journal:

IJECCE

Volume:

3

Number:

6

Pages:

1400-1404

Month:

November