Results 1 to 10 of about 107 (98)

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

Future 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   +3 more sources

Locked down: Ontological security and the experience of COVID‐19 while living in poor‐quality housing

Journal of Community Psychology, Volume 51, Issue 6, Page 2509-2529, August 2023., 2023
Abstract The aim of the paper is to illustrate how the housing system in the United Kingdom (UK) has contributed to creating vulnerabilities during the COVID‐19 pandemic. Drawing on the concept of ontological security we look at how living with housing insecurity whilst enduring poor housing conditions has impacted the lives of those living in ...
Philip Brown, Dillon Newton, Rachel Armitage, Leanne Monchuk, Brian Robson   +4 more
wiley   +1 more source

A novel secure data outsourcing scheme based on data hiding and secret sharing for relational databases

IET Communications, Volume 17, Issue 7, Page 775-789, April 2023., 2023
Abstract Data encryption‐based and secret sharing‐based data outsourcing schemes protect the confidentiality of sensitive attributes but not their secrecy. Ciphertexts/shares generated by a data encryption/secret sharing scheme can attract the attention of interceptors. Thus, it is desired to hide the existence of highly‐sensitive attributes (as secret
Peyman Rahmani, Mohammad Taheri, Seyed Mostafa Fakhrahmad   +2 more
wiley   +1 more source

Maximize the Security for Image Processing Using an Improved Watermarking Approach

Mathematical Problems in Engineering, Volume 2023, Issue 1, 2023., 2023
Creating a dependable and effective digital image watermarking (WM) method necessitates balancing imperceptibility, resilience, capacity, and security. Several studies have combined spatial and transform domains to meet these needs. We investigated the current state of hybrid digital image WM.
Manoj Kumar Tyagi, Cuddapah Anitha, R. Ramyadevi, Sunita Pachar, Ravi Kumar Tata, Preetam Suman, Fardin Ahmadi, Savita Gupta   +7 more
wiley   +1 more source

Image fragile watermarking algorithm based on deneighbourhood mapping

IET Image Processing, Volume 16, Issue 10, Page 2652-2664, 21 August 2022., 2022
Abstract To address the security risk caused by fixed offset mapping and the limited recoverability of random mapping used in image watermarking, a self‐embedding fragile image watermarking algorithm based on deneighbourhood mapping are proposed. First, the image is divided into several 2 × 2 blocks, and authentication watermark and recovery watermark ...
Yilong Wang, Zhenyu Li, Daofu Gong, Haoyu Lu, Fenlin Liu   +4 more
wiley   +1 more source

Statistical Assessment of Discrimination Capabilities of a Fractional Calculus Based Image Watermarking System for Gaussian Watermarks

Entropy, 2021
In this paper, we explore the advantages of a fractional calculus based watermarking system for detecting Gaussian watermarks. To reach this goal, we selected a typical watermarking scheme and replaced the detection equation set by another set of ...
Mario Gonzalez-Lee, Hector Vazquez-Leal, Luis J. Morales-Mendoza, Mariko Nakano-Miyatake, Hector Perez-Meana, Juan R. Laguna-Camacho   +5 more
doaj   +1 more source

[Retracted] A New Blind IoT‐Based MP3 Audio Watermarking Scheme for Content Integrity Checking and Copyright Protection

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
Rapid development in the area of information and embedded technology, mobile communication networks, IoT multimedia applications, compression, and distribution over Internet has led to a significant need to answer the question: “How to protect, secure, and authenticate multimedia documents?” One of the proposed responses to this challenge is digital ...
Salma Masmoudi, Maha Charfeddine, Sameer Alsharif, Chokri Ben Amar, Alessandro Bazzi   +4 more
wiley   +1 more source

Blackman–Tukey spectral estimation and electric network frequency matching from power mains and speech recordings

IET Signal Processing, Volume 15, Issue 6, Page 396-409, August 2021., 2021
Abstract Forensic applications exploit electric network frequency (ENF) as a fingerprint to determine multimedia content authenticity, as well as the time and region of multimedia recording. ENF is present at a nominal frequency of 50/60 Hz and its harmonics. Strong interference due to speech content deteriorates ENF estimation accuracy.
Georgios Karantaidis, Constantine Kotropoulos   +1 more
wiley   +1 more source

Semi-fragile watermarking with recovery capabilities for HGI compression method

Компьютерная 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

Commodity risk assessment of Persea americana from Israel

EFSA Journal, Volume 19, Issue 2, February 2021., 2021
Abstract The EFSA Panel on Plant health was requested to prepare and deliver risk assessments for commodities listed in the relevant Implementing Acts as ‘High risk plants, plant products and other objects’ (Commission Implementing Regulation (EU) 2018/2019 establishing a provisional list of high risk plants, plant products or other objects, within the
EFSA Panel on Plant Health (PLH), Claude Bragard, Katharina Dehnen‐Schmutz, Francesco Di Serio, Paolo Gonthier, Marie‐Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Lucia Zappalà, Pedro Gómez, Andrea Lucchi, Gregor Urek, Sara Tramontini, Olaf Mosbach‐Schulz, Eduardo de la Peña, Jonathan Yuen   +25 more
wiley   +1 more source