Paper Info
Title
A blind watermarking algorithm based on fractional Fourier transform and visual cryptography
Abstract
This paper presents a robust copyright protection scheme based on fractional Fourier transform (FrFT) and visual cryptography (VC). Unlike the traditional schemes, in our scheme, the original image is not modified by embedding the watermark into the original image. We use the visual secret sharing scheme to construct two shares, namely, master share and ownership share. Features of the original image are extracted using SVD, and are used to generate the master share. Ownership share is generated with the help of secret image (watermark) and the master share, using VC technique. The two shares separately give no information about the secret image, but for ownership identification, the secret image can be revealed by stacking the master share and the ownership share. In order to achieve the robustness and security, the properties of VC, FrFT and SVD are used in our scheme. The experimental results show that the proposed scheme is strong enough to resist various signal processing operations.
Year
DOI
Venue
2012
10.1016/j.sigpro.2011.12.006
Signal Processing
Keywords
Field
DocType
robust copyright protection scheme,visual cryptography,fractional fourier,traditional scheme,proposed scheme,secret image,ownership identification,vc technique,ownership share,visual secret sharing scheme,master share,original image,blind watermarking algorithm,fractional fourier transform,watermarking,singular value decomposition
Signal processing,Singular value decomposition,Digital watermarking,Secret sharing,Algorithm,Robustness (computer science),Watermark,Fractional Fourier transform,Mathematics,Visual cryptography
Journal
Volume
Issue
ISSN
92
6
0165-1684
Citations 
PageRank 
References 
44
1.28
17
Authors
2
Name
Order
Citations
PageRank
Sanjay Rawat114610.59
Balasubramanian Raman267970.23