Pixel-wise based digital watermarking using mean filter in chrominance channel

Conference proceedings article

Authors/Editors

THUMRONGRAT AMORNRAKSA

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Publication Details

Author list: Surachat K., Amornraksa T.

Publisher: Hindawi

Publication year: 2009

Start page: 525

End page: 528

Number of pages: 4

ISBN: 9781424450169

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949894515&doi=10.1109%2fISPACS.2009.5383785&partnerID=40&md5=c9453f1d7b5c5726d2ef8c9472e95b2b

Languages: English-Great Britain (EN-GB)

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Abstract

This paper proposes a method used to improve the retrieval performance of the digital watermarking based on the modification of image pixels. By embedding the watermark in the chrominance channel and using the mean filter with 3x3 window size in the watermark extraction process, the accuracy of the extracted watermark can be improved. Sets of experiment are carried out to verify our concept. The results show that, at equivalent image quality, our proposed watermarking method achieves a better performance in term of NC, compared to the previous method in [7]. The results also show the improved robustness of our method against additive Gaussian noise, JPEG compression standard and image cropping at various strengths. ฉ2009 IEEE.

Keywords