The using of orthogonal basis for the steganographic coding of information in multimedia

This article discusses methods for steganographic encoding additional information using three different orthogonal bases. The bases are represented by the functions, which occupies a different bandwidth in the spectrum. There are comparison of the approach to the definition of DCT- coefficients with the approaches used in the methods of the spread spectrum and subband projections. The approaches of the coefficients of the implementation to ensure secrecy by adaptive determination of their value are considere

Research of sensitivity of some measures of quality assessment of hidden information in the audio content

The paper presents a comparison of some measures of difference between the original signal and the result of the introduction of additional information. The comparison was based on the analysis of the implementation of the results-based steganographic method of spectrum spreading. The paper presents the results of the comparison of some measures of difference based on the analysis of speech signals in their division into segments of equal lengt

Research of sensitivity of some measures of quality assessment of hidden information in the audio content

The paper presents a comparison of some measures of difference between the original signal and the result of the introduction of additional information. The comparison was based on the analysis of the implementation of the results-based steganographic method of spectrum spreading. The paper presents the results of the comparison of some measures of difference based on the analysis of speech signals in their division into segments of equal lengt

The using of orthogonal basis for the steganographic coding of information in multimedia

This article discusses methods for steganographic encoding additional information using three different orthogonal bases. The bases are represented by the functions, which occupies a different bandwidth in the spectrum. There are comparison of the approach to the definition of DCT- coefficients with the approaches used in the methods of the spread spectrum and subband projections. The approaches of the coefficients of the implementation to ensure secrecy by adaptive determination of their value are considere