DocumentCode
3195394
Title
Data hiding in dot diffused halftone images
Author
Guo, Yuanfang ; Au, Oscar C. ; Tang, Ketan ; Fang, Lu ; Yu, Zhiding
Author_Institution
Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
fYear
2011
fDate
11-15 July 2011
Firstpage
1
Lastpage
6
Abstract
In this paper, we propose two halftone image watermarking methods. Data Hiding by Conjugate Dot Diffusion (DHCDD) and Data Hiding by Dual Conjugate Dot Diffusion (DHD-CDD). DHDCDD is an improved method of DHCDD. Both of these two methods can embed a secret pattern into two halftone images. When the two halftone images are overlaid, the secret pattern will be revealed. Compared to the recent method Noise Balanced Dot Diffusion, the experimental results show that the proposed methods are better in both Correct Decoding Rate and the visual quality of the revealed hidden pattern.
Keywords
Data hiding; dot diffusion; halftone image; visual cryptography; water-marking;
fLanguage
English
Publisher
ieee
Conference_Titel
Multimedia and Expo (ICME), 2011 IEEE International Conference on
Conference_Location
Barcelona, Spain
ISSN
1945-7871
Print_ISBN
978-1-61284-348-3
Electronic_ISBN
1945-7871
Type
conf
DOI
10.1109/ICME.2011.6011964
Filename
6011964
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