Journal ArticleDOI
Robust and blind watermarking algorithm based on DCT and SVD in the contourlet domain
TLDR
Experimental results demonstrate that the proposed watermarking scheme preforms better in terms of invisibility and robustness than other related schemes.Abstract:
A blind watermarking algorithm in multiple transform domains is presented for copyright protection. This robust algorithm is designed by fusing contourlet transform (CT), discrete cosine transform (DCT) and singular value decomposition (SVD). The host image is first decomposed by one-level CT and its low frequency sub-band is partitioned into 8 × 8 non-overlapping blocks. Then, each block is transformed by DCT and several middle frequency DCT coefficients with good stability are selected to construct the carrier matrix. Finally, the watermark is embedded by modifying the largest singular values of two carrier matrices. Besides, the geometric distortion factor is estimated with the speed up robust features (SURF) algorithm. The proposed watermarking scheme is evaluated in terms of imperceptibility and robustness. Experimental results demonstrate that the proposed watermarking scheme preforms better in terms of invisibility and robustness than other related schemes.read more
Citations
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Journal ArticleDOI
Blind and Robust Watermarking Scheme in Hybrid Domain for Copyright Protection of Medical Images
Ali Alzahrani,Nisar Ahmed Memon +1 more
TL;DR: In this paper, the authors proposed a robust watermarking technique in hybrid domain for the copyright claim of medical images, which is a fusion of three popular transforms: Discrete Wavelet Transform, Discrete Cosine Transform and Singular Value Decomposition (SVD).
Journal ArticleDOI
Watermarking schemes for digital images: Robustness overview
Oleg Evsutin,Kristina Dzhanashia +1 more
TL;DR: This study introduces classification of digital watermarking schemes by their robustness towards various classes of attacks, and highlights the most promising solutions that further development could lead to schemes with better robustness compared to existing schemes.
Journal ArticleDOI
Blind and safety-enhanced dual watermarking algorithm with chaotic system encryption based on RHFM and DWT-DCT
TL;DR: A novel blind watermarking algorithm based on radial harmonic Fourier moments as well as discrete wavelet transform and discrete cosine transform to achieve copyright protection and is robust against rotation and other attacks is proposed.
Journal ArticleDOI
Watermarking schemes for digital images: Robustness overview
TL;DR: In this paper , a comprehensive analysis of digital watermarking schemes' robustness to various types of attacks is presented. But, despite the large number of existing watermark schemes, a complete analysis of their robustness against various attacks does not exist.
Journal ArticleDOI
Contourlet and discrete cosine transform based quality guaranteed robust image watermarking method using artificial bee colony algorithm
Ertugrul Gul,Ahmet Nusret Toprak +1 more
TL;DR: In this paper , the authors proposed a robust image watermarking method using Artificial Bee Colony (ABC) algorithm to obtain high robustness with a predetermined quality threshold, which guarantees a PSNR value higher than 40 dB to ensure high imperceptibility.
References
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Journal ArticleDOI
Image quality assessment: from error visibility to structural similarity
TL;DR: In this article, a structural similarity index is proposed for image quality assessment based on the degradation of structural information, which can be applied to both subjective ratings and objective methods on a database of images compressed with JPEG and JPEG2000.
Journal ArticleDOI
Speeded-Up Robust Features (SURF)
TL;DR: A novel scale- and rotation-invariant detector and descriptor, coined SURF (Speeded-Up Robust Features), which approximates or even outperforms previously proposed schemes with respect to repeatability, distinctiveness, and robustness, yet can be computed and compared much faster.
Journal ArticleDOI
The contourlet transform: an efficient directional multiresolution image representation
Minh N. Do,Martin Vetterli +1 more
TL;DR: A "true" two-dimensional transform that can capture the intrinsic geometrical structure that is key in visual information is pursued and it is shown that with parabolic scaling and sufficient directional vanishing moments, contourlets achieve the optimal approximation rate for piecewise smooth functions with discontinuities along twice continuously differentiable curves.
Journal ArticleDOI
No-Reference Image Quality Assessment in the Spatial Domain
TL;DR: Despite its simplicity, it is able to show that BRISQUE is statistically better than the full-reference peak signal-to-noise ratio and the structural similarity index, and is highly competitive with respect to all present-day distortion-generic NR IQA algorithms.
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