RGBE filter

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The RGBE array uses a fourth colour, cyan, as well as red, green and blue.
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The RGBE array uses a fourth colour, cyan, as well as red, green and blue.
Compare to the earlier Bayer filter, with twice the green cells.
Enlarge
Compare to the earlier Bayer filter, with twice the green cells.

In digital photography, the RGBE filter is an alternative colour filter array to the Bayer filter (GRGB). It similarly uses a mosaic of pixel filters, of red, green, blue and "emerald" (cyan), and so also requires demosaicing to produce a full-colour image. It was developed by Sony and is so far only used in the ICX456 8 megapixel CCD and in the Sony CyberShot DSC-F828 camera [1]. Sony claim it gives a greatly improved colour gamut [2].

[edit] References

  1. ^ Phil Askey, Sony Cybershot DSC-F828 Review, DPReview.com, January 2004
  2. ^ Sony announce new RGBE CCD, press release, DPReview.com, Tue 15 July 2003
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