356 search results - page 54 / 72 » Foveated image watermarking |
ICIP
2002
IEEE
14 years 11 months ago
2002
IEEE
In this paper a fully automatic system for embedding visually recognizable watermark patterns to video objects is proposed. The architecture consists of 3 main modules. During the...
IWDW
2005
Springer
14 years 3 months ago
2005
Springer
Abstract. In this paper, the security of Dither Modulation Quantization Index Modulation schemes for digital images is analyzed. Both pixel and DCT coefficient quantization schemes...
ICIP
1999
IEEE
14 years 11 months ago
1999
IEEE
This work concentrates on the problem of watermarking embedding and optimum detection in color images through the use of spread spectrum techniques, both in space (Direct Sequence...
ICIP
2001
IEEE
14 years 11 months ago
2001
IEEE
Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to imp...
IEEEIAS
2009
IEEE
14 years 4 months ago
2009
IEEE
: This paper proposes a new watermarking method for detecting image tampering. First, an authentication number is created using a pair of watermark pixels as the coefficients of a ...