15 search results - page 1 / 3 » On the Intractability of Inverting Geometric Distortions in ... |
IH
2005
Springer
13 years 10 months ago
2005
Springer
We examine the problem of watermarking schemes robust against geometric distortions from a complexity theoretic point of view. The main results presented are polynomial time reduct...
ISW
2001
Springer
13 years 9 months ago
2001
Springer
Abstract. Watermarking stays the main technical safeguard of electronic copyright. This paper presents the first public-domain oblivious watermarking scheme for images which survi...
ICMCS
2006
IEEE
13 years 11 months ago
2006
IEEE
In this paper, an affine invariant watermarking scheme, robust to geometric attacks, is proposed and applied to face regions. Initially, face regions are unsupervisedly extracted ...
ICIP
2009
IEEE
13 years 3 months ago
2009
IEEE
There are various traditional video watermarking schemes robust to geometrical transformations. Most of them use synchronizing techniques or invariant transforms to resist geometr...
ISW
2000
Springer
13 years 9 months ago
2000
Springer
Generally, low frequency domain may be useful to embed a watermark in an image. However, if a watermark is embedded into low frequency components, blocking effects may occur in the...