Results 21 to 30 of about 2,172,252 (181)
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 +4 more
wiley +1 more source
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 +4 more
wiley +1 more source
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 +1 more
wiley +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) +25 more
wiley +1 more source
Destroy the Robust Commercial Watermark via Deep Convolutional Encoder‐Decoder Network
Security and Communication Networks, Volume 2021, Issue 1, 2021., 2021 Nowadays, robust watermark is widely used to protect the copyright of multimedia. Robustness is the most important ability for watermark in application. Since the watermark attacking algorithm is a good way to promote the development of robust watermark, we proposed a new method focused on destroying the commercial watermark.
Wei Jia +3 more
wiley +1 more source
A novel semi-fragile forensic watermarking scheme for remote sensing images [PDF]
, 2011 Peer-reviewedA semi-fragile watermarking scheme for multiple band images is presented. We propose to embed a mark into remote sensing images applying a tree structured vector quantization approach to the pixel signatures, instead of processing each band ...
Serra Ruiz, Jordi +3 more
core +1 more source
Wavelet-based fragile watermarking scheme for image authentication [PDF]
, 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 +2 more
core +1 more source
Digital watermarking scheme exploiting non-deterministic dependence for image authentication [PDF]
, 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
Digital fragile watermarking scheme for authentication of JPEG images [PDF]
, 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
A Semi‐Fragile Video Watermarking Algorithm Based on H.264/AVC
Wireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020 With the increasing application of advanced video coding (H.264/AVC) in the multimedia field, a great significance to research in video watermarking based on this video compression standard has been established. We propose a semifragile video watermarking algorithm, which can simultaneously implement frame attack and video tamper detection, herein.
Chen Li +4 more
wiley +1 more source