50 search results - page 3 / 10 » Enhanced images watermarking based on amplitude modulation |
IH
1999
Springer
13 years 10 months ago
1999
Springer
This paper presents a new stochastic approach which can be applied with di erent watermark techniques. The approach is based on the computation of a Noise Visibility Function NVF ...
ICIP
2009
IEEE
13 years 3 months ago
2009
IEEE
An improved blind image quality assessment scheme that is based on the Watson's just noticeable difference (JND) modulated spread spectrum watermarking, is proposed. For the ...
JCIT
2010
13 years 17 days ago
2010
Watermark perceptibility and robustness must be ensured in order to enhance the practicality of digital watermarking. Taking human visual system characteristics into account fully...
IWDW
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. Many coded digital watermarking systems development requires first the selection of a (uncoded) modulation technique to be part of a coded architecture. Therefore, perfo...
ICIP
2009
IEEE
14 years 6 months ago
2009
IEEE
In this paper, security evaluation of an important watermarking class based on quantization is given. Theoretical developments and practical simulations are used to measure the se...