Journal
Scientific and technical journal of information technologies, mechanics and optics
UDK004.622
Issue:6 (70)
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METHODS OF DIGITAL IMAGES MARKING IN THE FREQUENCY DOMAIN
Annotation
The article deals with methods of images marking with digital watermarks, for example, for authentication of multimedia products. For combination of the implemented image compression algorithms based on wavelet transform with copyright protection algorithms, Xie Liehua method of wavelet marking is the most suitable. Just in that very method the digital signature is placed in the receptive significant portion of the transformed image, which is preserved the most completely by the compression algorithms.
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