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Distribution shape of two-dimensional DCT coefficients of natural images

Distribution shape of two-dimensional DCT coefficients of natural images

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© The Institution of Electrical Engineers
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The univariate distribution of DCT coefficients of natural images is investigated. The probability density function (PDF) of the coefficients is modelled with the generalised Gaussian function (GGF) which includes the Gaussian and the Laplacian PDF as special cases. The shape parameter of the GGF is estimated according to the maximum likelihood principle, χ2 tests of fit showed that GGFs model the distribution of DCT coefficients more accurately than Laplacian PDFs.

Inspec keywords: discrete cosine transforms; image coding; probability; maximum likelihood estimation

Other keywords: 2D type; univariate distribution; Laplacian PDF; probability density function; distribution shape; PDF; natural images; generalised Gaussian function; maximum likelihood principle; two-dimensional DCT coefficients; Gaussian PDF

Subjects: Other topics in statistics; Pattern recognition; Integral transforms; Integral transforms; Other topics in statistics; Codes; Optical information, image and video signal processing

References

    1. 1)
      • Y. Du . Ein sphärisch invariantes Verbunddichtemodell für Bildsignale. Archiv für Elektronik und übertragungstechnik , 3 , 148 - 159
    2. 2)
      • M.G. Kendall , A. Stuart . (1967) The advanced theory of statistics, Vol.2.
    3. 3)
      • F. Bellifemine , A. Capellino , A. Chimienti , R. Picco , R. Ponti . Statistical analysis of the 2D-DCT coefficients of the differential signal of images. Image Communication , 477 - 478
    4. 4)
      • R. Reiniger , J. Gibson . Distribution of the two-dimensional DCT coefficients for images. IEEE Trans. , 6
    5. 5)
      • W.K. Pratt . (1978) , Digital image processing.
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