Proceedings ArticleDOI
A new robust reference watermarking framework in Gyrator domain
Gaurav Bhatnagar,Q. M. Jonathan Wu +1 more
- pp 000648-000651
TLDR
A novel reference watermarking scheme based on Gyrator transform is presented to segment original image into non-overlapping blocks using zigzag scan followed by the reference image formation considering the spatial frequency of the blocks.Abstract:
In this paper, a novel reference watermarking scheme based on Gyrator transform is presented. The core idea is to segment original image into non-overlapping blocks using zigzag scan followed by the reference image formation considering the spatial frequency of the blocks. Reference image is then transformed in the Gyrator domain. The embedding of the watermark is done by modifying singular values of reference image in Gyrator domain with the singular values of watermark image. The experimental results demonstrates the performance and robustness of the proposed algorithm against a variety of attacks.read more
Citations
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Journal ArticleDOI
Mean value based reversible data hiding in encrypted images
Smita Agrawal,Manoj Kumar +1 more
TL;DR: Experimental results, on various standard grayscale test images, and comparison with recently proposed existing techniques exhibit the superiority of the proposed technique in terms of security, reversibility, privacy protection and computational efficiency.
Study of contemporary digital watermarking techniques
TL;DR: The conventional watermark techniques from various points of view based on the transform domain are more popular than those of the spatial domain.
Journal ArticleDOI
Discrete Gyrator Transforms: Computational Algorithms and Applications
TL;DR: This paper proposes three kinds of discrete gyrator transforms (DGTs) based on the 2D LCT, each of which is a cascade of low-complexity operators, and develops an efficient computational algorithm to significantly reduce the complexity of this DGT.
References
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Book
Digital Watermarking
TL;DR: Digital Watermarking covers the crucial research findings in the field and explains the principles underlying digital watermarking technologies, describes the requirements that have given rise to them, and discusses the diverse ends to which these technologies are being applied.
Journal ArticleDOI
Image quality measures and their performance
A.M. Eskicioglu,P.S. Fisher +1 more
TL;DR: Although some numerical measures correlate well with the observers' response for a given compression technique, they are not reliable for an evaluation across different techniques, and a graphical measure called Hosaka plots can be used to appropriately specify not only the amount, but also the type of degradation in reconstructed images.
Journal ArticleDOI
An SVD-based watermarking scheme for protecting rightful ownership
Ruizhen Liu,Tieniu Tan +1 more
TL;DR: A novel watermarking algorithm based on singular value decomposition (SVD) is proposed and results show that the newwatermarking method performs well in both security and robustness.
Journal ArticleDOI
Watermarking digital image and video data. A state-of-the-art overview
TL;DR: The authors begin by discussing the need for watermarking and the requirements and go on to discuss digitalWatermarking techniques based on correlation and techniques that are notbased on correlation.
Journal Article
Watermarking digital image and video data
TL;DR: A chuck has a chuck body rotatable about an axis and formed with a plurality of angularly spaced radially extending inner guides and a plurality that is radially displaceable in each of the inner guides.