Efficient schemes for compressed-domain image resizing

Do Nyeon Ki, Yoonsik Choe, K. R. Rao

Research output: Contribution to journalArticle

Abstract

Fast schemes for compressed-domain image size change, are proposed. Fast Winograd DCTs are applied to resizing images by a factor of two to one. First, we speed up the DCT domain downsampling scheme which uses the bilinear interpolation. Then, we speed up other image resizing schemes which use DCT lowpass truncated approximations. The schemes proposed here reduce the computational complexities significantly, while there is no difference in the overall quality of the images compared to previous works.

Original languageEnglish
Pages (from-to)556-562
Number of pages7
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE92-A
Issue number2
DOIs
Publication statusPublished - 2009 Feb

Fingerprint

Computational complexity
Interpolation
Speedup
Computational Complexity
Interpolate
Approximation

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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Efficient schemes for compressed-domain image resizing. / Ki, Do Nyeon; Choe, Yoonsik; Rao, K. R.

In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E92-A, No. 2, 02.2009, p. 556-562.

Research output: Contribution to journalArticle

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