Using the discrete cosine transformation to construct a hologram for the task of embedding hidden watermarks

Старченко А.П. Применение дискретного косинусного преобразования для построения голограммы в задаче встраивания скрытых водяных знаков // Оптический журнал. 2011. Т. 78. № 3. С. 29–33.

Starchenko A.P. Using the discrete cosine transformation to construct a hologram for the task of embedding hidden watermarks [in Russian] // Opticheskii Zhurnal. 2011. V. 78. № 3. P. 29–33.

A. P. Starchenko, "Using the discrete cosine transformation to construct a hologram for the task of embedding hidden watermarks," Journal of Optical Technology. 78(3), 176-179 (2011). https://doi.org/10.1364/JOT.78.000176

This paper shows that a discrete cosine transformation can be used to embed and reconstruct hidden watermarks and that this approach has advantages. It is established that the method of constructing a hologram on the basis of the discrete cosine transformation broadens the dynamic range and reduces the redundancy when the image of a watermark is reconstructed by comparison with an image reconstructed by a technique based on the Fourier transformation.