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On basis images for the digital image representation
V. N. Gorbachev, L. A. Denisov, E. M. Kaynarova +2
Digital array orthogonal transformations that can be presented as a decomposition over basis items or basis images are considered. The orthogonal transform provides digital data sc…
On the steganographic image based approach to PDF files protection
V. N. Gorbachev, L. A. Denisov, E. M. Kaynarova +1
Digital images can be copied without authorization and have to be protected. Two schemes for watermarking images in PDF document were considered. Both schemes include a converter t…
Embedding of binary image in the Gray planes
V. N. Gorbachev, L. A. Denisov, E. M. Kainarova
For watermarking of the digital grayscale image its Gray planes have been used. With the help of the introduced representation over Gray planes the LSB embedding method and detecti…