474 search results - page 56 / 95 » Region-Based Watermarking for Images |
GECCO
2005
Springer
14 years 3 months ago
2005
Springer
We propose an evolutionary algorithm for the enhancement of digital semi-fragile watermaking based on the manipulation of the image discrete cosine transform (DCT). The algorithm ...
ICIP
1997
IEEE
14 years 11 months ago
1997
IEEE
SSWMC
2004
13 years 11 months ago
2004
Encryption and watermarking are complementary lines of defense in protecting multimedia content. Recent watermarking techniques have therefore been developed independent from encr...
ICIP
2006
IEEE
14 years 11 months ago
2006
IEEE
Abstract-- This paper presents an authentication watermarking method which can localize the tampering regions in fine granularity. Unlike the previous block-wise Tampering-Localiza...
ICIP
2002
IEEE
14 years 11 months ago
2002
IEEE
Most of the watermarking schemes that have been proposed until now employ a correlator in the detection stage. The current paper proposes a new detector scheme that can be applied...