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Proceedings Paper

Exploiting DCT masking effect to improve the perceptual quality of data hiding
Author(s): G. Boato; M. Carli; D. Molteni; P. Rota
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Paper Abstract

This paper presents an innovative watermarking scheme which allows the insertion of information in the Discrete Cosine Transform (DCT) domain increasing the perceptual quality of the watermarked images by exploiting the masking effect of the DCT coefficients. Indeed, we propose to make the strength of the embedded data adaptive by following the characteristics of the Human Visual System (HVS) with respect to image fruition. Improvements in the perceived quality of modified data are evaluated by means of various perceptual quality metrics as demonstrated by experimental results.

Paper Details

Date Published: 8 February 2010
PDF: 8 pages
Proc. SPIE 7532, Image Processing: Algorithms and Systems VIII, 75320F (8 February 2010); doi: 10.1117/12.841041
Show Author Affiliations
G. Boato, Univ. of Trento (Italy)
M. Carli, Univ. degli Studi Roma Tre (Italy)
D. Molteni, Univ. of Trento (Italy)
P. Rota, Univ. of Trento (Italy)

Published in SPIE Proceedings Vol. 7532:
Image Processing: Algorithms and Systems VIII
Jaakko T. Astola; Karen O. Egiazarian, Editor(s)

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