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ICIP
2002
IEEE
14 years 11 months ago
A blind watermarking technique in JPEG compressed domain
We proposed a blind watermarking technique to embed the watermark in JPEG compressed domain. Low frequency DCT coefficients are extracted to form an M-dimensional vector. Watermar...
Oscar C. Au, Peter H. W. Wong
MUE
2008
IEEE
143views Multimedia» more  MUE 2008»
14 years 4 months ago
A Robust Watermark Scheme for Copyright Protection
In this paper, we propose a robust watermark technology that can be used to protect copyright. We enhance robustness of the watermark such that it can be used to protect the intel...
Chu-Hsing Lin, Jung-Chun Liu, Chih-Hsiong Shih, Ya...
ICHIM
2001
108views more  ICHIM 2001»
13 years 11 months ago
A Digital Image Processing and Database System for Watermarks in Medieval Manuscripts
Watermarks are the most important tool for dating old, not explicitly dated paper documents. Hence, catalogues and databases of watermarks play an eminent role for the work of med...
Emanuel Wenger, Victor N. Karnaukhov, Alois Haidin...
AMC
2007
134views more  AMC 2007»
13 years 10 months ago
An image fragile watermark scheme based on chaotic image pattern and pixel-pairs
Fragile watermarking techniques for digital content have been studied in the past few years. Fragile watermarks are used to determine if a piece of watermarked digital content has...
Shaohui Liu, Hongxun Yao, Wen Gao, Yongliang Liu
JEI
2002
152views more  JEI 2002»
13 years 9 months ago
Cryptanalysis of the Yeung - Mintzer fragile watermarking technique
The recent proliferation of digital multimedia content has raised concerns about authentication mechanisms for multimedia data. A number of authentication techniques based on digi...
Jessica J. Fridrich, Miroslav Goljan, Nasir Memon