DCT Based High Quality Image Compression

  • Nikolay Ponomarenko
  • Vladimir Lukin
  • Karen Egiazarian
  • Jaakko Astola
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3540)

Abstract

DCT based image compression using blocks of size 32x32 is considered. An effective method of bit-plane coding of quantized DCT coefficients is proposed. Parameters of post-filtering for removing of blocking artifacts in decoded images are given. The efficiency of the proposed method for test images compression is analyzed. It is shown that the proposed method is able to provide the quality of decoding images higher than for JPEG2000 by up to 1.9 dB.

Keywords

Compression Ratio Discrete Cosine Transform Discrete Wavelet Transform Image Compression Image Block 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Nikolay Ponomarenko
    • 1
  • Vladimir Lukin
    • 1
  • Karen Egiazarian
    • 2
  • Jaakko Astola
    • 2
  1. 1.Department 504National Aerospace University (Kharkov Aviation Institute)KharkovUkraine
  2. 2.Tampere International Center for Signal ProcessingTampere University of TechnologyTampereFinland

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