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Chroma Replacing and adaptive Chroma Blending for subpixel-based downsampling

  • Hong Kong University of Science and Technology
  • University of Science and Technology of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Subpixel-based downsampling generates images with higher apparent resolution with the expense of annoying color-fringing artifacts near strong edges. In this paper we propose two methods that find a balance in the tradeoff of apparent resolution and color-fringing artifacts. The first method is called Chroma Replacing in which the color-fringing artifacts are completely removed but the subpixel rendering effect is also removed. The second one is called Chroma Blending in which only the color-fringing artifacts that are strong enough to be noticed are removed, and also the subpixel rendering effect is retained. We also propose two objective measures for measuring the similarity of downsampled image to the original image. Experiment results show that the proposed methods are effective in removing color-fringing artifacts, without harming the high apparent resolution.

Original languageEnglish
Title of host publication2013 IEEE International Workshop on Multimedia Signal Processing, MMSP 2013
Pages212-217
Number of pages6
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 IEEE 15th International Workshop on Multimedia Signal Processing, MMSP 2013 - Pula, Sardinia, Italy
Duration: 30 Sep 20132 Oct 2013

Publication series

Name2013 IEEE International Workshop on Multimedia Signal Processing, MMSP 2013

Conference

Conference2013 IEEE 15th International Workshop on Multimedia Signal Processing, MMSP 2013
Country/TerritoryItaly
CityPula, Sardinia
Period30/09/132/10/13

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