50 search results - page 2 / 10 » Enhanced images watermarking based on amplitude modulation |
IH
1998
Springer
13 years 9 months ago
1998
Springer
This paper2 presents a new approach for the secure and robust copyright protection of digital images. A system for generating digital watermarks and for trading watermarked images ...
IWDW
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they desynchronize the decoder, completely ru...
SSWMC
2004
13 years 6 months ago
2004
A possible solution to the difficult problem of geometrical distortion of watermarked images in a blind watermarking scenario is to use a template grid in the autocorrelation func...
IWDW
2005
Springer
13 years 10 months ago
2005
Springer
Image-Adaptive watermarking systems exploit visual models to adapt the watermark to local properties of the host image. This leads to a watermark power enhancement, hence an improv...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
Quantization-based watermarking schemes are vulnerable to amplitude scaling. Therefore, the scaling factor needs to be estimated at the decoder side, such that the received (attac...