43 search results - page 2 / 9 » Geometric hashing techniques for watermarking |
SIBGRAPI
2007
IEEE
13 years 11 months ago
2007
IEEE
This paper presents a data hiding technique for printed bicolor documents. It inserts tiny dots, hardly noticeable at normal reading distance, to embed the message. For message ex...
MTA
2007
13 years 5 months ago
2007
This paper addresses a geometrically invariant watermarking method for digital images. Most previous watermarking algorithms perform weakly against geometric distortions, which des...
KES
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. This paper evaluates feature extraction techniques in aspect of watermark synchronization. Most watermarking algorithms suffer from geometric distortion attacks that desy...
ISW
2001
Springer
13 years 10 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...
APCCAS
2002
IEEE
13 years 10 months ago
2002
IEEE
In this paper, we develop a robust bit-plane watermarking technique based on zerotree coding. A robust watermark is an imperceptible but indelible code that can be used for owners...