S. Bounkong, B. Toch, D. Saad, and D. Lowe (UK)
Digital Watermarking, Capacity, Codebook
Digital watermarking aims at embedding information in digital data. The watermark is usually required to be im perceptible, unremovable and to have a high information content. Unfortunately, these three requirements are con tradicting. For example, having a more robust watermark makes it either more perceptible or/and less informative. For Gaussian data and additive white Gaussian noise, an optimal but also impractical scheme has already be devised. Since then, many practical schemes have tried to approach the theoretical limits. This paper investigate improvements to current state-of-the-art embedding schemes.
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