Abstract
Reversible Image Watermarking is a technique to losslessly embed and retrieve information (in the form of a watermark) in a cover image. We have proposed and implemented a reversible color image watermarking algorithm in the YCoCg-R color space, based on histogram bin shifting of the prediction errors, using weighted mean based prediction technique to predict the pixel values. The motivations for choosing the YCoCg-R color space lies in the fact that its transformation from the traditional RGB color space is reversible, with higher transform coding gain and near to optimal compression performance than the RGB and other reversible color spaces, resulting in considerably higher embedding capacity. We demonstrate through information theoretic analysis and experimental results that reversible watermarking in the YCoCg-R color space results in higher embedding capacity at lower distortion than RGB and several other color space representations.
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Roy, A., Chakraborty, R.S., Naskar, R. (2015). Reversible Color Image Watermarking in the YCoCg-R Color Space. In: Jajoda, S., Mazumdar, C. (eds) Information Systems Security. ICISS 2015. Lecture Notes in Computer Science(), vol 9478. Springer, Cham. https://doi.org/10.1007/978-3-319-26961-0_28
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DOI: https://doi.org/10.1007/978-3-319-26961-0_28
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