DOI 10.17586/0021-3454-2016-59-9-717-722
UDC 004.056.5
INCREASE IN THE VOLUME OF INFORMATION TRANSMITTED IN STEGANOGRAPHIC SYSTEM ON THE BASE OF THE DIRECT SPECTRUM EXTENSION METHOD
Perm State University, Department of Radioelectronics and Protection of Information; Post-Graduate Student
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Abstract. A steganographic information protection system based on the direct spectrum extension method is considered. Possibility to increase the volume of information transmitted in the system is analyzed. A criterion is chosen for determining the degree of image distortion after introduction of the hidden message. Efficiency of application of block overlapping when embedding the additional information with a low degree of image distortion is determined.
Keywords: steganography, direct spectrum extension, two-dimensional autoregressive process, block overlapping, S-CIELAB, CIEDE2000
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