Image watermarking against lens flare effects

Piyanart Chotikawanid; Thumrongrat Amornraksa

doi:10.1117/12.2266928

8 February 2017 Image watermarking against lens flare effects

Piyanart Chotikawanid, Thumrongrat Amornraksa

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.

Citation Download Citation

Piyanart Chotikawanid and 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); https://doi.org/10.1117/12.2266928

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