Instruction manual

Marlin Technical ManualV.2.7.0
100
Description of the data path
Color interpolation (BAYER demosaicing)
In color interpolation a red, green or blue value is determined for each pixel.
Only two lines are needed for this interpolation:
Note

If the PC does not perform BAYER to RGB post-processing the
b/w image will be superimposed with a checkerboard pattern.
Figure 60: Bayer demosaicing (interpolation)
Note

On the color camera, a wrongly colored border of one or two
pixel wide forms on the left and right image borders. This is
also a consequence of BAYER demosaicing as the image width
displayed on the color camera is not scaled down.
P1
red
R1=
P1
green
G1 G3+
2
------------------
=
P1
blue
B1=
P2
red
R2=
P2
green
G1 G4+
2
------------------
=
P2
blue
B1=
P3
red
R2=
P3
green
G2 G4+
2
------------------
=
P3
blue
B2=