Paper Info
Title
Watermark Embedding for Multiscale Error Diffused Halftone Images by Adopting Visual Cryptography
Abstract
Error Diffusion has been widely adopted in the printing industry due to its good visual quality and simple implementation. However, error diffusion still possesses its own deficiencies. Thus multiscale error diffusion MED has been developed, and this method outperforms traditional error diffusion according to extensive research results. The majority of previous halftone image watermarking techniques cannot be directly applied to MED halftone images. Since there is no halftone visual watermarking HVW method for MED halftone images in existing methods, we propose the first HVW method for MED halftone images, Copyright Protecting Multiscale Error Diffusion CoP-MED, in this paper. By adopting the visual cryptography principle, CoP-MED can effectively embed a secret pattern into two MED halftone images, where the secret pattern can be decoded clearly by simply overlaying the two stego halftone images or performing not-exclusive-or operation between them. Parameter selection is also discussed based on the experimental results. Later, in comparison tests, CoP-MED shows superior performance compared to existing works.
Year
DOI
Venue
2015
10.4018/IJDCF.2015010103
International Journal of Digital Crime and Forensics
Keywords
Field
DocType
CoP-MED, Copyright Protection, Error Diffusion, Halftone Image, Halftone Image Watermarking, Multiscale Error Diffusion, Visual cryptography, Watermarking
Steganography,Computer vision,Digital watermarking,Computer science,Error diffusion,Halftone,Artificial intelligence,Overlay,Visual cryptography,Watermark embedding
Journal
Volume
Issue
ISSN
7
1
1941-6210
Citations 
PageRank 
References 
2
0.36
32
Authors
3
Name
Order
Citations
PageRank
Yuanfang Guo19518.21
Oscar C. Au21592176.54
Ketan Tang310612.98