Results 11 to 20 of about 911 (209)

Review on Semi-Fragile Watermarking Algorithms for Content Authentication of Digital Images

open access: yesFuture Internet, 2017
With the popularity of network and the continuous development of multimedia technology, saving of network bandwidth and copyright protection of multimedia content have gradually attracted people’s attention.
Xiaoyan Yu, Chengyou Wang, Xiao Zhou
doaj   +2 more sources

Semi-Fragile Zernike Moment-Based Image Watermarking for Authentication

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
We propose a content-based semi-fragile watermarking algorithm for image authentication. In content-based watermarking scheme for authentication, one of the most challenging issues is to define a computable feature vector that can capture the major ...
Yao Xinzhi, Liu Hongmei, Huang Jiwu
doaj   +3 more sources

Reversible and Fragile Watermarking for Medical Images [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2018
A novel reversible digital watermarking technique for medical images to achieve high level of secrecy, tamper detection, and blind recovery of the original image is proposed. The technique selects some of the pixels from the host image using chaotic key for embedding a chaotically generated watermark. The rest of the pixels are converted to residues by
Atta-ur-Rahman 0001   +4 more
openaire   +2 more sources

Evaluation of a Framework for Robust Image Reversible Watermarking

open access: yesApplied Sciences, 2022
In the literature, robust reversible watermarking schemes (RWSs) allow the extraction of watermarks after the images have suffered attacks; however, the modified images are compromised.
Jose Juan Garcia-Hernandez   +3 more
doaj   +1 more source

A single watermark based scheme for both protection and authentication of identities

open access: yesIET Image Processing, 2022
The security of a watermarking scheme is mainly categorised as either robust or fragile. The former can withstand an authorised alteration/attack, primarily used in copyright protection.
S. Sharma, J.J. Zou, G. Fang
doaj   +1 more source

Local feature based self-embedding fragile watermarking scheme for tampered detection and recovery utilizing AMBTC with fuzzy logic

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
The aim of designing self-embedding fragile watermarking is copy-right protection, tamper localization and image recovery. This paper proposes a self-embedding fragile watermarking scheme for tamper detection and recovery based on local image ...
Manasi Jana   +2 more
doaj   +1 more source

Digital watermarking scheme exploiting non-deterministic dependence for image authentication [PDF]

open access: yes, 2006
Watermarking schemes for authentication purposes are characterized by three factors: security, resolution of tamper localization, and embedding distortion.
Yuan, Yinyin, Li, Chang-Tsun
core   +1 more source

Wavelet-based fragile watermarking scheme for image authentication [PDF]

open access: yes, 2007
We propose a fragile watermarking scheme in the wavelet transform domain that is sensitive to all kinds of manipulations and has the ability to localize the tampered regions.
Si, Huayin, Li, Chang-Tsun
core   +1 more source

Digital fragile watermarking scheme for authentication of JPEG images [PDF]

open access: yes, 2004
It is a common practice in transform-domain fragile watermarking schemes for authentication purposes to watermark some selected transform coefficients so as to minimise embedding distortion.
C.-T. Li, Li, Chang-Tsun
core   +1 more source

Semi-fragile watermarking with recovery capabilities for HGI compression method

open access: yesКомпьютерная оптика, 2022
The article proposes a new semi-fragile watermarking system with the ability of tamper localization and recovery after distortions, adapted for the HGI image compression method.
A.Y. Bavrina, V.A. Fedoseev
doaj   +1 more source

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