55 search results - page 3 / 11 » Using the Fractal Code to Watermark Images |
ICIP
2001
IEEE
14 years 7 months ago
2001
IEEE
In this paper we propose a new watermarking technique where the watermark is embedded according to two keys. The first key is used to embed a code bit in a block of pixels. The se...
ICIP
2001
IEEE
14 years 7 months ago
2001
IEEE
Coding at the sample level in still image watermarking takes advantage of avoiding a non-optimum initial diversity stage, used in many watermarking systems for tailoring Gaussian ...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
The paper proposes a blind spread spectrum watermarking scheme where watermark information is embedded redundantly in the multilevel wavelet coefficients of the cover image. It ha...
SIBGRAPI
2003
IEEE
13 years 11 months ago
2003
IEEE
Abstract. Authentication watermarking is a hidden data inserted into an image, in order to detect any alterations. It seems to be almost impossible to design a really secure authen...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
If we treated image watermarking as a communication problem using the image as the communication channel, applying error-correcting codes (ECC) to the watermarking system should i...