Restoring subsampled color images

Research output: Contribution to journalArticlepeer-review


In some capturing devices, such as digital cameras, there is only one color sensor at each pixel. Usually, 50% of the pixels have only a green sensor, 25% only a red sensor, and 25% only a blue sensor. The problem is then to restore the two missing colors at each pixel - this is called "demosaicing", because the original samples are usually arranged in a mosaic pattern. In this short paper, a few demosaicing algorithms are developed and compared. They all incorporate a notion of "smoothness in chroma space", by imposing conditions not only on the behavior of each color channel separately, but also on the correlation between the three channels.

Original languageEnglish
Pages (from-to)197-202
Number of pages6
JournalMachine Vision and Applications
Issue number4
StatePublished - 1998


  • Color interpolation
  • Demosaicing
  • Regularization

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Computer Science Applications


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