66 search results - page 12 / 14 » A Robust Image Watermarking Scheme Using Multiwavelet Tree |
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
In this paper we suggest viewing images (as well as attacks on them) as a sequence of linear operators and propose novel hashing algorithms employing transforms that are based on ...
CMS
2003
13 years 7 months ago
2003
Abstract. Wavelet packet decompositions generalize the classical pyramidal wavelet structure. We use the vast amount of possible wavelet packet decomposition structures to create a...
ICIP
2006
IEEE
14 years 8 months ago
2006
IEEE
The most significant bit (MSB)-plane of an image is least likely to change by the most signal processing operations. Watermarking techniques are, however, unable to exploit the MS...
ICIP
2006
IEEE
14 years 8 months ago
2006
IEEE
We present a novel approach to detect multiscale keypoints using the Dual Tree Complex Wavelet Transform (DTCWT). We show that it is a well-suited basis for this problem as it is ...
MMSEC
2006
ACM
14 years 6 days ago
2006
ACM
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...