ALLIED Vision Technologies Marlin F-201 - Manual (Page 105)

Description of the data path
MARLIN Technical Manual V2.4.0
105
RAW-mode is accessible via Color_Mode Mono8, RAW8 and via Format_7
Mode_1.
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
L
If the PC does not perform BAYER to RGB post-processing the
b/w image will be superimposed with a checkerboard pattern.
Figure 62: Bayer demosaicing (interpolation)
Note
L
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 =