Halftone Image Watermarking based on Visual Cryptography

In this paper we have proposed digital watermarking scheme for halftone images based on visual cryptography scheme. The scheme does not embed the watermark directly on the halftone image instead watermark will be divided into the parts called as shares. The scheme not only protects the watermark but...

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Bibliographic Details
Published in:International journal of computer applications 2012-01, Vol.41 (20), p.1-5
Main Authors: Chourasia, Jaishri, Potdar, M B, Jhummarwala, Abdul, Parmar, Keyur
Format: Article
Language:English
Subjects:
Copyrights
Cryptography
Digital watermarking
Extraction
Visual
Watermarking
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Summary:In this paper we have proposed digital watermarking scheme for halftone images based on visual cryptography scheme. The scheme does not embed the watermark directly on the halftone image instead watermark will be divided into the parts called as shares. The scheme not only protects the watermark but also provides an effective copyright protection scheme. At the time of watermark embedding verification share is generated and at the time of watermark extraction master share is generated using (2, 2) visual cryptography scheme. Verification share and master share are used to extract the watermark pattern. The experimental results show that the scheme is robust and transparent against various watermarking attack.
ISSN:0975-8887
0975-8887
DOI:10.5120/5805-8010