10 search results - page 1 / 2 » A vision-based masking model for spread-spectrum image water... |
ICMCS
2006
IEEE
13 years 11 months ago
2006
IEEE
In the integrity checking context of multimedia contents, a malicious user aims at devising a forged content in order to fool a watermarker by making him use as a genuine content....
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...
JEI
2006
13 years 5 months ago
2006
A robust, invisible watermarking scheme is proposed for digital images, where the watermark is embedded using the blockbased lapped orthogonal transform (LOT). The embedding proces...
TIP
2002
13 years 5 months ago
2002
Abstract-- We present a perceptual model for hiding a spreadspectrum watermark of variable amplitude and density in an image. The model takes into account the sensitivity and maski...
IWDW
2005
Springer
13 years 11 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...