Enhanced image watermarking using adaptive pixel prediction

Conference proceedings article

Authors/Editors

THUMRONGRAT AMORNRAKSA

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Publication Details

Author list: Nudklin P., Amornraksa T.

Publisher: Hindawi

Publication year: 2009

Start page: 1393

End page: 1398

Number of pages: 6

ISBN: 9781424445219

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-74549149468&doi=10.1109%2fISCIT.2009.5341072&partnerID=40&md5=d26fc8511b436fe5558da25f1de2e886

Languages: English-Great Britain (EN-GB)

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Abstract

In this paper, an adaptive original pixel prediction is proposed to enhance the watermark retrieval performance of the image watermarking method proposed in [8]. Accordingly, our proposed method adaptively removes one or more surrounding pixel(s) around the predicted pixel, depending on a given threshold, to improve the accuracy in the original pixel prediction process. The experimental results show the improved performance in term of the accuracy of the retrieved watermark, compared to the previous retrieval method proposed in [8]. We also evaluate the robustness of our watermarking approach against various attacks i.e. Gaussian noise, JPEG compression, image cropping and contrast enhancement. ฉ2009 IEEE.

Keywords