Exploiting the cross-correlation of RGB-channels for robustwatermarking of color images
Piva, A.
Bartolinin, F.
Cappellini, V.
Barni, M.
Dept. of Electron., Florence Univ.;
This paper appears in: Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Publication Date: 1999
Volume: 1,
On page(s): 306-310 vol.1
Meeting Date: 10/24/1999 - 10/28/1999
Location: Kobe, Japan
ISBN: 0-7803-5467-2
References Cited: 9
INSPEC Accession Number: 6503901
Digital Object Identifier: 10.1109/ICIP.1999.821619
Current Version Published: 2002-08-06
Abstract
In the last few years, digital watermarking has been proposed as a
solution to the problem of copyright protection of multimedia data
against unauthorized uses. In the field of image watermarking, research
has been mainly focused on grey-scale image watermarking, whereas the
extension to the color case is usually accomplished by marking the image
luminance, or by processing each color channel separately. In this
paper, a DCT domain technique expressly devised for watermarking of
color images is presented, which exploits the characteristics of the
human visual system and the correlation between the RGB image channels.
Experimental results are presented to demonstrate the validity of the
new approach with respect to algorithms operating on image luminance
only
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