User`s manual

AW00098504000 Color Creation and Enhancement

Basler ace Camera Link 129

8 Color Creation and

Enhancement

This chapter provides information about how color images are created on color camera models and

about the features available for adjusting the appearance of the colors.

8.1 Color Creation

The sensor used in the cameras is equipped with an additive color separation filter known as a

Bayer filter. The pixel data output formats available on color cameras are related to the Bayer

pattern, so you need a basic knowledge of the Bayer filter to understand the pixel formats. With the

Bayer filter, each individual pixel is covered by a part of the filter that allows light of only one color

to strike the pixel. The pattern of the Bayer filter used on the camera is as shown in Figure 39 (the

alignment of the Bayer filter with repect to the sensor is shown as an example only; the figure shows

the "GB" filter alignment). As the figure illustrates, within each square of four pixels, one pixel sees

only red light, one sees only blue light, and two pixels see only green light. (This combination mimics

the human eye’s sensitivity to color.)

Sensor

Pixels

Fig. 39: Bayer Filter Pattern