Digital watermarking: a state-of-the-art review
Date
2010Author
Adesina, Ademola Olusola
Nyongesa, Henry O.
Agbele, Kehinde K.
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Show full item recordAbstract
Digital watermarking is the art of embedding data, called a
watermark, into a multimedia object such that the watermark can be detected or
extracted later without impairing the object. Concealment of secret messages inside a
natural language, known as steganography, has been in existence as early as the 16th
century. However, the increase in electronic/digital information transmission and
distribution has resulted in the spread of watermarking from ordinary text to
multimedia transmission. In this paper, we review various approaches and methods
that have been used to conceal and preserve messages. Examples of real-world
applications are also discussed.