@InProceedings{KimMaye:2007:DaHiBi,
author = "Kim, Hae Yong and Mayer, Joceli",
affiliation = "Escola Polit{\'e}cnica, Universidade de S{\~a}o Paulo and
LPDS/EEL, Universidade Federal de Santa Catarina",
title = "Data Hiding for Binary Documents Robust to Print-Scan, Photocopy
and Geometric Distortions",
booktitle = "Proceedings...",
year = "2007",
editor = "Falc{\~a}o, Alexandre Xavier and Lopes, H{\'e}lio C{\^o}rtes
Vieira",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 20.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
keywords = "Data hiding, watermarking, document authentication, print-scan
resilience, photocopy resilience.",
abstract = "This paper presents a data hiding technique for printed bicolor
documents. It inserts tiny dots, hardly noticeable at normal
reading distance, to embed the message. For message extraction, we
employ auto-correlation and tiny registration dots to rectify
geometric distortions. This technique is robust to distortions
resulting from print-scan operations, good quality photocopies,
affine transformations and scribblings/stains on the paper. The
technique can be applied to documents with large white (or black)
areas and they may present characters, drawings, schematics,
diagrams, cartoons, but not halftones. The technique is intended
to be neither a robust watermark (because any filtering can remove
the dots) nor a covert communication (because the dots are
perceptible at short distance). Nevertheless, when combined with a
perceptual hashing and a cryptography protocol, it can be applied
as semi-fragile authentication watermarking for hardcopy two-tone
documents. In some situations, the utilization of the proposed
system can substitute the use of notarial authenticated
photocopies.",
conference-location = "Belo Horizonte, MG, Brazil",
conference-year = "7-10 Oct. 2007",
doi = "10.1109/SIBGRAPI.2007.31",
url = "http://dx.doi.org/10.1109/SIBGRAPI.2007.31",
language = "en",
ibi = "6qtX3pFwXQZG2LgkFdY/QNsb8",
url = "http://urlib.net/ibi/6qtX3pFwXQZG2LgkFdY/QNsb8",
targetfile = "Kim-DataHiding.pdf",
urlaccessdate = "2024, Apr. 27"
}