1 July 2005 Data hiding in the context of lossy compression: a combined approach
Author Affiliations +
J. of Electronic Imaging, 14(3), 033017 (2005). doi:10.1117/1.1992501
Abstract
We propose a new compression-based algorithm that combines compression using lattice vector quantization (LVQ) in the wavelet domain and data hiding. It deals with two major constraints. (1) compression must not degrade the embedded mark and (2) watermarking must not affect coding performances. Our approach is based on a new multidimensional dead zone that enables us to maintain a sparse representation of the quantized wavelet coefficients, as well as a constant-entropy insertion method. Furthermore, an algorithm to estimate the quantization parameters is proposed. It leads to both variable rate encoding and bit rate adapted data hiding.
Jean-Marie Moureaux, Ludovic Guillemot, "Data hiding in the context of lossy compression: a combined approach," Journal of Electronic Imaging 14(3), 033017 (1 July 2005). http://dx.doi.org/10.1117/1.1992501
JOURNAL ARTICLE
13 PAGES


SHARE
KEYWORDS
Data hiding

Image compression

Quantization

Distortion

Wavelets

Discrete wavelet transforms

Factor analysis

RELATED CONTENT


Back to Top