Robust image watermarking based on luminance modification
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Author list: Mettripun N., Amornraksa T., Delp E.J.
Publisher: Society of Photo-optical Instrumentation Engineers
Publication year: 2013
Journal: Journal of Electronic Imaging (1017-9909)
Volume number: 22
Issue number: 3
ISSN: 1017-9909
eISSN: 1560-229X
Languages: English-Great Britain (EN-GB)
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Abstract
A robust image watermarking technique based on a modification of the luminance component of the host color image is described. Three methods are proposed in the watermarking scheme in order to improve its performance in terms of accuracy of the extracted watermark and robustness of the embedded watermark. These methods are a new approach to watermark embedding in the luminance component of a host image and a new original image prediction technique in the watermark extraction process. A set of experiments is carried out to verify our proposed methods. The experimental results show significant improvements gained from our proposed watermarking scheme compared to previous existing schemes. The results also show enhanced robustness of the embedded watermark against various types of attacks. Our proposed watermarking scheme can be used for both color and gray scale images. ฉ 2013 The Authors.
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