44 search results - page 2 / 9 » Recovery of Watermarks from Distorted Images |
ICIP
1999
IEEE
13 years 9 months ago
1999
IEEE
This paper presents a model for watermarking and some attacks on watermarks. Given the watermarked signal, the so-called Wiener attack performs minimum mean-squared error (MMSE) es...
ICIP
2005
IEEE
14 years 7 months ago
2005
IEEE
This paper presents novel techniques for detecting watermarks in images in a known-cover attack framework using natural scene models. Specifically, we consider a class of watermar...
TMM
2002
13 years 4 months ago
2002
This paper presents a model for watermarking and some attacks on watermarks. Given the watermarked signal, the so-called Wiener attack performs minimum mean-squared error (MMSE) es...
CORR
2011
Springer
13 years 9 days ago
2011
Springer
This paper proposes a strict authentication watermarking for medical images. In this scheme, we define region of interest (ROI) by taking the smallest rectangle around an image. T...
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 ...