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New Block-Relationships Based Stereo Image Watermarking Algorithm

Authors:
Mei Yu
Aihong Wang
Ting Luo
Gangyi Jiang
Fucui Li
Songyin Fu

Keywords: Three dimensional video system; Stereo image watermark; Intra- and inter-block relationships

Abstract:
A new relationship based stereo image watermarking algorithm for three dimensional video system on the concept of intra-blocks and inter-blocks relationships is given. Corresponding coefficients of discrete cosine transform and discrete wavelet transform in the same position blocks are employed for defining intra-block relationship. Direct current coefficients for stereo pair in the same position blocks are used to describe inter-block relationship. Both of relationships are used to embed digital watermarks into stereo image pair; moreover, parity quantization is designed for watermark embedding when relationships can not work well. Experimental results show that the proposed algorithm can embed a watermark into images invisibly and the watermark can be detected blindly. At same time, the proposed algorithm is robust to attacks, such as JPEG compression, noise, filter, cropping, and so on.

Pages: 171 to 174

Copyright: Copyright (c) IARIA, 2011

Publication date: October 23, 2011

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-166-3

Location: Barcelona, Spain

Dates: from October 23, 2011 to October 29, 2011