EXTERNAL ATTACKS EFFECT ON DC COEFFICIENTS OF DCT MATRIX OF STILL SEMITONE IMAGES

Korobeynikov Anatoliy Grigorievich, Mikhailichenko Olga V, Prokhozhev Nikolai N

2008 , VOLUME 08, NUMBER 11 ( July-August )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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EXTERNAL ATTACKS EFFECT ON DC COEFFICIENTS OF DCT MATRIX OF STILL SEMITONE IMAGES

A. G. Korobeynikov, O. V. Mikhailichenko, N. N. Prokhozhev

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Abstract

The subject of this article is an external attacks effect on DC coefficient of semitone image DCT matrix. The goal of this analysis is a convenience determination of using DC coefficients as a data hide area for steganography algorithms. Resizing, Gaussian noise, filtering and JPEG compression are used as an external attacks.

Keywords: steganography, DCT-base algorithms, JPEG compression

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