Call For Paper Volume:4 Issue:8 Aug'2017 |

Enhancing the Capabilities of Visual Cryptography

Publication Date : 01/10/2015



Author(s) :

RIYA ROY , Alga Baby.


Volume/Issue :
Volume 2
,
Issue 9
(10 - 2015)



Abstract :

XOR-based VC (Visual Cryptography) is a method of image encryption used to hide the secret information in images. In the traditional VC, the secret image is encrypted into n number of shares randomly and distributed to the n number of participates. The secret image can be recovered simply by stacking the shares without any complex computation involved. Favourable properties, such as good resolution and high contrast, are maintained by XOR-based VC. Data hiding is a technique that conceals data into a carrier for conveying secret messages confidentially. Digital images are widely transmitted over the Internet; therefore, they often serve as a carrier for covert communication. The work proposes XOR-based VC with enhanced security feature and combined with a new data embedding method to reduce the embedding impact by providing a simple extraction function and a more compact neighbourhood set. The proposed method embeds more messages per modification into a secret image and thus increases the embedding efficiency. The image and security obtained by the proposed method not only performs better than existing methods, but also brings higher payload with less detectability. Moreover, the best notational system for data concealing can be determined and employed in this new method according to the given payload so that a lower image distortion can be achieved.


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Enhancing the Capabilities of Visual Cryptography

September 30, 2015