Sciweavers

45 search results - page 8 / 9
» On Attacking Statistical Spam Filters
Sort
View
TCSV
2008
134views more  TCSV 2008»
13 years 6 months ago
Invariant Image Watermarking Based on Statistical Features in the Low-Frequency Domain
Watermark resistance to geometric attacks is an important issue in the image watermarking community. Most countermeasures proposed in the literature usually focus on the problem of...
Shijun Xiang, Hyoung-Joong Kim, Jiwu Huang
CNIS
2006
13 years 7 months ago
Dynamically blocking access to web pages for spammers' harvesters
Almost all current anti spam measures are reactive, filtering being the most common. But to react means always to be one step behind. Reaction requires to predict the next action ...
Tobias Eggendorfer, Jörg Keller
ACCV
2007
Springer
14 years 14 days ago
High Capacity Watermarking in Nonedge Texture Under Statistical Distortion Constraint
High-capacity image watermarking scheme aims at maximize bit rate of hiding information, neither eliciting perceptible image distortion nor facilitating special watermark attack. T...
Fan Zhang, Wenyu Liu, Chunxiao Liu
ICIP
1999
IEEE
13 years 10 months ago
Power Spectrum Condition for Energy-Efficient Watermarking
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...
Jonathan K. Su, Bernd Girod
TMM
2002
91views more  TMM 2002»
13 years 5 months ago
Power-spectrum condition for energy-efficient watermarking
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...
Jonathan K. Su, Bernd Girod