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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 8,
  • Issue 4,
  • pp. 381-383
  • (2010)

Rate-oriented perceptual image coding using contrast-based quantization

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Abstract

A new image coding approach is proposed by controlling the quantization step via minimizing the perceptual distortions (in terms of image's contrast measurement). The proposed method is a rate-oriented contrast-based approach, which is in contrast to the conventional quality-oriented contrast-based image coding. The algorithm achieves a higher perceptual quality performance against several methods developed previously.

© 2010 Chinese Optics Letters

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