RGBE filter

RGBE filter

In digital photography, the RGBE filter is an alternative color filter array to the Bayer filter (GRGB). It similarly uses a mosaic of pixel filters, of red, green, blue and "emerald" ("like cyan" according to Sony), and so also requires demosaicing to produce a full-color 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. [Phil Askey, [http://www.dpreview.com/reviews/sonydscf828/ Sony Cybershot DSC-F828 Review] ,DPReview.com, January 2004]

Sony states that the reason for adding the fourth filter color is "to reduce the color reproduction errors and to record natural images closer to the natural sight perception of the human eye." [ [http://www.dpreview.com/news/0307/03071601sonyrgbeccd.asp Sony announce new RGBE CCD] , press release, DPReview.com, Tue 15 July 2003]


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