474 search results - page 73 / 95 » Region-Based Watermarking for Images |
ICIP
2002
IEEE
14 years 11 months ago
2002
IEEE
The theoretical foundations of data hiding have been revealed by formulating the problem as message communication over a noisy channel, i.e. the host document. In light of this de...
ICIP
2005
IEEE
14 years 11 months ago
2005
IEEE
This paper proposes a detailed framework of storing privacy information in surveillance video as a watermark. Authorized personnel is not only removed from the surveillance video ...
IH
1999
Springer
14 years 2 months ago
1999
Springer
Abstract. This paper presents two main results. The first is a new approach to steganography in which data is encoded in correlations among the pixels in an image. Almost all prev...
JDCTA
2010
13 years 4 months ago
2010
Perceptual transparency and robustness are conflicting requirements. To ensure the security of the watermarkhow to choose the embedding position and intensity is a difficult probl...
MICCAI
2002
Springer
14 years 10 months ago
2002
Springer
We present a comparison between a voxel based approach and a region based technique for detecting brain activation signals in sequences of functional Magnetic Resonance Images (fMR...