20 search results - page 1 / 4 » Watermarks and Text Transformations in Visual Document Authe... |
JCP
2007
13 years 4 months ago
2007
— Integrity of digital documents is a very important issue if they are to be legally binding. Common solutions, like digital signatures or message authentication codes, are based...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
Authentication watermarking is the process that inserts hidden data into an object (image) in order to detect any fraudulent alteration perpetrated by a malicious hacker. In the l...
IWDW
2004
Springer
13 years 9 months ago
2004
Springer
Abstract. In image authentication watermarking, hidden data is inserted into an image to detect any accidental or malicious image alteration. In the literature, quite a small numbe...
ETRICS
2006
13 years 8 months ago
2006
Digital signatures and message authentication codes are well known methods for ensuring message integrity. However, they rely on computations which are too hard to be performed by ...
COMSWARE
2008
IEEE
13 years 11 months ago
2008
IEEE
Some works are reported in the frequency domain watermarking using Single Value Decomposition (SVD). The two most commonly used methods are based on DCT-SVD and DWTSVD. The commonl...