Journal
EXPERT SYSTEMS WITH APPLICATIONS
Volume 36, Issue 9, Pages 11509-11516Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eswa.2009.03.060
Keywords
Watermark; Blind; Copyright protection; Maximum coefficient quantization; Wavelet
Categories
Funding
- National Science Council of Taiwan [NSC-97-2221-E-129-007, NSC-97-2221-E-239-022]
Ask authors/readers for more resources
This paper proposes a blind watermarking algorithm based on maximum wavelet coefficient quantization for copyright protection. The wavelet coefficients are grouped into different block size and blocks are randomly selected from different subbands. We add different energies to the maximum wavelet coefficient under the constraint that the maximum wavelet coefficient is always maximum in a block. The watermark is embedded the local maximum coefficient which can effectively resist attacks. Also, using the block-based watermarking, we can extract the watermark without using the original image or watermark. Experimental results show that the proposed method is quite robust under either non-geometry or geometry attacks. (c) 2009 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available