@InProceedings{BorgesIzquMaye:2008:EfTeCo,
author = "Borges, Paulo and Izquierdo, Ebroul and Mayer, Joceli",
affiliation = "Queen Mary, University of London and Queen Mary, University of
London and {Universidade Federal de Santa Catarina}",
title = "Efficient Text Color Modulation for Printed Side Communications
and Data Hiding",
booktitle = "Proceedings...",
year = "2008",
editor = "Jung, Cl{\'a}udio Rosito and Walter, Marcelo",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 21.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
keywords = "image processing, hardcopy watermarking.",
abstract = "This paper improves the use of text color modulation (TCM) as a
reliable text document data hiding method. Using TCM, the
characters in a document have their color components modified
(possibly unperceptually) according to a side message to be
embedded. This work presents a detection metric and an analysis
determining the detection error rate in TCM, considering an
assumed print and scan (PS) channel model. In addition, a
perceptual impact model is employed to evaluate the perceptual
difference between a modified and a non-modified character.
Combining this perceptual model and the results from the detection
error analysis it is possible to determine the optimum color
modulation values. The proposed detection metric also exploits the
orientation characteristics of color halftoning to reduce the
error rate. In particular, because color halftoning algorithms use
different screen orientation angles for each color channel, this
is used as an effective feature to detect the embedded message.
Experiments illustrate the validity of the analysis and the
applicability of the method.",
conference-location = "Campo Grande, MS, Brazil",
conference-year = "12-15 Oct. 2008",
doi = "10.1109/SIBGRAPI.2008.23",
url = "http://dx.doi.org/10.1109/SIBGRAPI.2008.23",
language = "en",
ibi = "6qtX3pFwXQZG2LgkFdY/V9gjK",
url = "http://urlib.net/ibi/6qtX3pFwXQZG2LgkFdY/V9gjK",
targetfile = "borges_P_TextDataHiding.pdf",
urlaccessdate = "2024, Apr. 28"
}