Results 51 to 60 of about 2,172,252 (181)

Optimal Semi-Fragile Watermarking Based on Maximum Entropy Random Walk and Swin Transformer for Tamper Localization

IEEE Access
In the multimedia arena, image tampering is an uncontrollable process that necessitates content authentication and tamper detection in a variety of applications.
P. Aberna, L. Agilandeeswari
doaj   +1 more source

Semi-fragile Watermarking, Authentication and Localisation Techniques for Law Enforcement Applications

, 2020
With the tremendous growth and use of digital cameras and video devices, the need to verify the collected digital content for law enforcement applications such as crime scene investigations and traffic violations, becomes paramount if they are to be used
Ho, ATS, Zhao, X
core   +1 more source

A Fragile Watermarking Scheme for Authentication of Semi-regular Meshes [PDF]

, 2008
This paper presents a fragile watermarking scheme for authentication of 3D semi-regular meshes. After one wavelet decomposition, the watermark is inserted by slightly modifying the norms and orientations of the obtained wavelet coefficient vectors.
Denis, Florence, Baskurt, Atilla, Lavoue, Guillaume, Wang, Kai   +3 more
core   +2 more sources

A robust semi-fragile watermarking system using Pseudo-Zernike moments and dual tree complex wavelet transform for social media content authentication. [PDF]

Multimed Tools Appl, 2023
Agilandeeswari L, Prabukumar M, Alenizi FA.   +2 more
europepmc   +1 more source

Security on Fragile and Semi-fragile Watermarks Authentication

International Journal of Computer Applications, 2010
ABSTRACT Digital image manipulation software is now readily available on personal computers. It is therefore very simple to tamper with any image and make it available to others. Ensuring digital image security has therefore become a major issue. Watermarking has become a popular technique for copyright enforcement and image authentication.
Shilpi Saha, Debnath Bhattacharyya, Samir Kumar Bandyopadhyay   +2 more
openaire   +1 more source

Watermarking for multimedia security using complex wavelets [PDF]

, 2010
This paper investigates the application of complex wavelet transforms to the field of digital data hiding. Complex wavelets offer improved directional selectivity and shift invariance over their discretely sampled counterparts allowing for better ...
Bouridane, A., Kurugollu, Fatih, Alastair Ian Thompson, Thompson, Alastair Ian, Bouridane, Ahmed, Fatih Kurugollu, Tanougast, Camel, Camel Tanougast, Thompson, A.I., Tanougast, C., Ahmed Bouridane   +10 more
core   +1 more source

Dual domain semi-fragile watermarking for image authentication

, 2003
Techniques to establish the authenticity and integrity of digital images are becoming increasingly essential for secure transacting. Ideally, the authentication algorithm should distinguish incidental integrity maintaining distortions such as lossy ...
Zhao, Yang
core   +1 more source

Reversible watermarking scheme with image-independent embedding capacity [PDF]

Permanent distortion is one of the main drawbacks of all the irreversible watermarking schemes. Attempts to recover the original signal after the signal passing the authentication process are being made starting just a few years ago. Some common problems,
Li, Chang-Tsun
core  

Security of fragile watermarking scheme for image authentication

, 2012
[[abstract]]Recently, Lu et al. proposed a fragile watermarking scheme to prevent the quantization attack. However, the present study shows that the modified scheme's objective as a fragile watermark is unfortunately lost, because it is possible for any ...
廖冠捷;Liao, Kuan-Chieh
core  

Robust and Semi-fragile Watermarking Techniques for Image Content Protection

, 2009
In this report, the concept of robust and semi-fragile watermarking is described for copyright protection and authentication of digital images. A number of different transforms and algorithms used for robust and semi-fragile image watermarking are ...
Zhao, Xi
core