Home // INTERNET 2012, The Fourth International Conference on Evolving Internet // View article
Authors:
Po-Chyi Su
Yu-Chuan Chang
Keywords: digital watermark; geometrical transformations; SIFT; StirMark.
Abstract:
This research presents a feature-based still image watermarking approach. Scale-Invariant Feature Transform (SIFT) is first applied to locate the interest points, from which we form the invariant regions for watermark embedding. To resist geometrical transformations, the extended synchronization templates, which help to ensure that reasonably large invariant regions will be available for carrying the watermark payload and/or for increasing the confidence of watermark detection, will also be embedded. In the detection phase, after SIFT, the template is first determined locally by adjusting the related affine parameters of the grid to match with the possible hidden template signal so that the watermark can be retrieved afterwards. Experimental results show the feasibility of the proposed method.
Pages: 102 to 107
Copyright: Copyright (c) IARIA, 2012
Publication date: June 24, 2012
Published in: conference
ISSN: 2308-443X
ISBN: 978-1-61208-204-2
Location: Venice, Italy
Dates: from June 24, 2012 to June 29, 2012