Dither-modulation data hiding with distortion-compensation: exact performance analysis and an improved detector for JPEG attacks

Author

Pérez-González, Fernando ; Comesana, P. ; Balado, Felix

Author_Institution

Dept. Tecnologias de las Comunicaciones, Vigo Univ., Spain

Volume

2

fYear

2003

fDate

14-17 Sept. 2003

Abstract

The binary distortion compensated dither-modulation (DC-DM), which can be regarded to as a baseline for quantization-based data-hiding methods, is rigorously analyzed. A novel and accurate procedure for computing the exact probability of bit error is given, as well as an approximation amenable to differentiation which allows to obtain the optimal weights in a newly proposed decoding structure, for significant improvements on performance. The results are particularized for a JPEG compression scenario which allows to show their usefulness. Experimental results validating the proposed theory are presented.

Keywords

error statistics; image coding; modulation; vector quantisation; watermarking; JPEG compression; binary distortion compensated dither-modulation; bit error probability; data-hiding methods; decoding structure; Additive noise; Bit error rate; Data encapsulation; Decoding; Delta modulation; Detectors; Image analysis; Performance analysis; Quantization; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on

ISSN

1522-4880

Print_ISBN

0-7803-7750-8

Type

conf

DOI

10.1109/ICIP.2003.1246727

Filename

1246727