Guppy PRO Technical Manual
V4.1.2
118
In color interpolation a red, green or blue value is determined for each pixel.
An Allied Vision proprietary Bayer demosaicing algorithm is used for this
interpolation (2x2), optimized for both sharpness of contours as well as
reduction of false edge coloring.
Color processing can be bypassed by using so-called RAW image transfer.
RAW mode is primarily used to
•
save bandwidths on the IEEE1394 bus
•
achieve higher frame rates
•
use different Bayer demosaicing algorithms on the PC (for all Guppy PRO
models the first pixel of the sensor is RED).
In color interpolation a red, green or blue value is determined for each pixel.
Only two lines are needed for this interpolation:
Figure 59: Bayer demosaicing (example of 2x2 matrix)
Note
If the PC does not perform Bayer to RGB post-processing, the
monochrome image will be superimposed with a
checkerboard pattern.
Figure 60: Bayer demosaicing (interpolation)
×
R1
G1
R2
G2
G3
B1
G4
B2
P1
P2
P3
Input:
Output:
