72 search results - page 5 / 15 » A DCT Domain Visible Watermarking Technique for Images |
JMM2
2008
13 years 6 months ago
2008
In this work, an adaptive image compression algorithm is proposed based on the prediction of AC coefficients in Discrete Cosine Transform (DCT) block during reconstruction of image...
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 ...
ICMCS
2006
IEEE
14 years 12 days ago
2006
IEEE
In order to improve the robustness and imperceptibleness of the image spread spectrum watermark algorithm, a new approach for optimization in 8×8 DCT domain using genetic algorit...
ICICS
2003
Springer
13 years 11 months ago
2003
Springer
In this paper, we propose a new method for hiding a signature image in the host image. We encode the signature image by a balanced two-description subband coder and embed the descr...
ICIP
2001
IEEE
14 years 8 months ago
2001
IEEE
In this paper we introduce the idea of using Computer Vision techniques for improving and enhancing watermarking capabilities. Specifically, we incorporate Geometric Hashing techn...