8 February 2017 Image watermarking against lens flare effects
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Proceedings Volume 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016); 102251D (2017) https://doi.org/10.1117/12.2266928
Event: Eighth International Conference on Graphic and Image Processing, 2016, Tokyo, Japan
Abstract
Lens flare effects in various photo and camera software nowadays can partially or fully damage the watermark information within the watermarked image. We propose in this paper a spatial domain based image watermarking against lens flare effects. The watermark embedding is based on the modification of the saturation color component in HSV color space of a host image. For watermark extraction, a homomorphic filter is used to predict the original embedding component from the watermarked component, and the watermark is blindly recovered by differentiating both components. The watermarked image’s quality is evaluated by wPSNR, while the extracted watermark’s accuracy is evaluated by NC. The experimental results against various types of lens flare effects from both computer software and mobile application showed that our proposed method outperformed the previous methods.
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Piyanart Chotikawanid, Piyanart Chotikawanid, Thumrongrat Amornraksa, Thumrongrat Amornraksa, "Image watermarking against lens flare effects", Proc. SPIE 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016), 102251D (8 February 2017); doi: 10.1117/12.2266928; https://doi.org/10.1117/12.2266928
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