Results 71 to 80 of about 911 (209)
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
Time-Frequency and Time-Scale-Based Fragile Watermarking Methods for Image Authentication
EURASIP Journal on Advances in Signal Processing, 2010 Two fragile image watermarking methods are proposed for image authentication. The first method is based on time-frequency analysis and the second one is based on time-scale analysis.
Sattar Farook, Barkat Braham
doaj +2 more sources
Fragile Watermarking for Image Authentication Using QR factorization and Fourier Transform
, 2019 Image authentication technique is one of the important methods for a large number of multimedia applications. When a digital image is passed over non-secure channels such as the Internet, it may be changed and manipulated.
Hedieh Sajedi +2 more
core +1 more source
Pattern-Based Fragile Watermarking For Color Images
, 2010 Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark ...
openaire +3 more sources
Finding Patterns: Virginia Woolf and Marianne Moore's Poetics of Paper
Critical Quarterly, Volume 67, Issue 3, Page 90-111, October 2025.
Claire Battershill
wiley +1 more source
The Poetics of the Single Sheet of Paper: From Research to Practice
Critical Quarterly, Volume 67, Issue 3, Page 23-39, October 2025.
Jane Partner
wiley +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
Geometric Invariant Semi-fragile Image Watermarking Using Real Symmetric Matrix [PDF]
, 2010 In order to improve the detection of malicious tampering of images, it is necessary to decrease the fragility of hidden watermarks, even for digital images which have been distorted incidentally. However, watermarks are sensitive to geometric distortions.
謝景棠; Hsieh, Ching-tang; 吳業寬; Wu, Yeh-kuang; 洪國銘; Hung, Kuo-ming
core +1 more source
Chaos-based scramble self-embedding watermarking algorithm
Tongxin xuebao, 2006 A chaos-based scramble self-embedding watermarking algorithm was proposed to locate tamper block on the wa- termarked images and improve security of the existing self-embedding fragile watermarking algorithms that could not effec- tively locate tamper ...
HE Hong-jie, ZHANG Jia-shu
doaj +2 more sources
Alpha Channel Fragile Watermarking for Color Image Integrity Protection
Journal of Imaging, 2017 This paper presents a fragile watermarking algorithm`m for the protection of the integrity of color images with alpha channel. The system is able to identify modified areas with very high probability, even with small color or transparency changes.
Barbara Bonafè +3 more
doaj +1 more source