Smartek UCC User Manual page 44

User Manual - twentynine
In general the Bayer color filters are arranged in a 2-by-2 pattern where the green filter is used as twice as
red or blue filter as described above. The first two pixels from top and left of the pixel array determine the
name of the Bayer pattern. The Bayer pattern shown in Figure 26 is therefore called a "RG" pattern. This
pattern is one of the four Bayer patterns available: GR, RG, BG and GB shown in Figure 27.
Figure 27: Bayer Color Filter Array placed on top of an area image sensor
Since each pixel accumulates only the intensity value of the red, green or blue light, there are missing
information for displaying a color image. At the pixel position of a red color filter for example, the green
and blue information are missing. To reproduce the full color information, various interpolation methods
can be applied to calculate the missing values based on the neighbor pixels. Those interpolation methods
are often called color filter array interpolation, demosaicing or debayering. For more detailed description
of the debayering methods, please refer to chapter 8.2.6 - Color Filter Array Interpolation (Demosaicing /
Debayering) in this user manual.
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SMARTEK Vision | User Manual - twentynine | Doc. v1.0.2