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DEXAW
1999
IEEE
176views Database» more  DEXAW 1999»
14 years 2 months ago
Windsurf: Region-Based Image Retrieval Using Wavelets
In this paper we present WINDSURF (Wavelet-Based Indexing of Images Using Region Fragmentation), a new approach to content-based image retrieval. The method uses the wavelet trans...
Stefania Ardizzoni, Ilaria Bartolini, Marco Patell...
JEI
2008
129views more  JEI 2008»
13 years 8 months ago
Removable visible image watermarking algorithm in the discrete cosine transform domain
Abstract. A removable visible watermarking scheme, which operates in the discrete cosine transform (DCT) domain, is proposed for combating copyright piracy. First, the original wat...
Ying Yang, Xingming Sun, Hengfu Yang, Chang-Tsun L...
ISCAS
2003
IEEE
125views Hardware» more  ISCAS 2003»
14 years 3 months ago
A blind watermarking technique for multiple watermarks
We propose a blind watermarking technique to embed multiple watermarks simultaneously. It allows the use of correlated key to embed multiple watermarks. A dual-key system is used ...
Peter H. W. Wong, Oscar C. Au
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...