... discussions of them can be found in Petitcolas (n.d.), Voyatzis, Nikolaidis and Pitas (1998), Ruanaidh, Dowling and Boland (1996), Ruanaidh and Pun (1997), Hsu and Wu (1996), Ruanaidh, Boland and Dowling ... Morimoto and Lu (1996), Zaho, and Silvestre and Dowling (1997) include discussions of watermarking concepts and principles and review developments in transparent data embedding for audio, image, and video ... transform coefficients.The work presented in Ruanaidh, Dowling and Boland (1996), Ruanaidh,Boland and Dowling (1996), Bors and Pitas (1996), Nikolaidis and Pitas (1996),Pitas (1996), Boland,...