Results 81 to 90 of about 169,902 (214)

Robust and Semi-fragile Watermarking Techniques for Image Content Protection [PDF]

, 2020
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   +1 more source

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

Tamper detection, localization and self-recovery using slant transform with DNA encoding for medical images

Results in Engineering
This work proposes an improved self-embedding semi-fragile watermarking scheme for a smart healthcare system using telemedicine. The watermark is produced by encoding the Slant Transform (ST) coefficients of each block of the host image.
Samudrala Jagadeesh, Ami Kumar Parida, K Meenakshi   +2 more
doaj   +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  

Asymmetric Fragile Watermarking Using a Number Theoretic Transform [PDF]

, 2009
We propose an asymmetric fragile watermarking technique that uses a number theoretic transform (NTT). Signature data is extracted from a watermarked image by determining correlation functions that are computed using the NTT.
Tamori, Hideaki, Yamamoto, Tsuyoshi
core   +1 more source

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  

DIPS: Data Integrity Protection of Signals

Algorithms
The integrity protection of digital signals is an important task in modern applications. We propose DIPS (Data Integrity Protection of Signals), a fragile watermarking algorithm aiming to protect the integrity of sampled signals like images composed of ...
Marco Botta, Davide Cavagnino, Annunziata Marra   +2 more
doaj   +1 more source

Improve security of fragile watermarking via parameterized wavelet

, 2004
The security is an important issue in watermarking. It has not, however, received enough attention yet. In this paper, we propose a secure fragile watermarking algorithm based on parameterized integer wavelet transform, and the rational range of the ...
Hu, Junquan, Huang, Jiwu, Shi, Yun Q., Hnang, Daren   +3 more
core   +1 more source

Fragile Digital Watermarking by Synthetic Holograms

, 2004
In this article is presented an application of synthetic hologram as fragile watermarking. The proposed technique is a frequency domain watermarking, based on computer generated hologram. Our technique, named Fragile Synthetic Holographic Watermarking (F-
COZZELLA LORENZO, SCHIRRIPA SPAGNOLO, Giuseppe, SIMONETTI, CARLA   +2 more
core  

Semi-fragile watermarking berbasis DWT-Haar pada gateway IoT ESP32 untuk verifikasi integritas data detak jantung

Jurnal Eltek
Perangkat wearable mengirimkan data detak jantung melalui kanal nirkabel yang tidak menyediakan jaminan bahwa nilai yang diterima sama dengan nilai yang dikirim.
Syauqii Usaiyyah Kristanto, Rahmawati Hasanah, Teguh Ginanjar   +2 more
doaj   +1 more source