USE OF ANALYTICAL TRANSFORMATIONS IN TASKS OF IMAGES COMPRESSION

Authors

  • О. К. Юдін National aviation university
  • К. О. Курінь National aviation university
  • О. І. Варченко National aviation university

DOI:

https://doi.org/10.18372/2310-5461.13.5008

Keywords:

transformation of images, correlation, dispersion, pixel

Abstract

The analysis of existent algorithms of transformation of images is provided. The mathematical models of trans-formations are considered, among them: discrete cosine transformation, discrete wavelet transformation, trans-formation of Haar, transformation of Walsh-Hadamard. Marked mathematical models are realized programmatic with the tools of Mathcad. The calculation of characteristics which determines efficiency of transformations for a test image is conducted. Cross-correlation of values of brightness of nearby pixels and redistribution of dispersions between the values of brightness of even and odd pixels of image are chosen as such characteristics.

References

Селомон Д. Стиснення даних, зображень і звуку / Д. Селомон. — М. : Техносфера, 2006. — 386 с.

Фомин А. А. Основы сжатия информации / А. А. Фомин. — СПб. : СПГТУ, 1998. — С. 27–30.

Salomon D. Variable-length codes for compression methods / D. Salomon. — Springer-Verlag London Limited, 2007. — 205 p.

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Published

2011-06-23

How to Cite

Юдін, О. К., Курінь, К. О., & Варченко, О. І. (2011). USE OF ANALYTICAL TRANSFORMATIONS IN TASKS OF IMAGES COMPRESSION. Science-Based Technologies, 13(1), 64–69. https://doi.org/10.18372/2310-5461.13.5008

Issue

Vol. 13 No. 1 (2012)

Section

Information Security

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