ALLIED Vision Technologies Marlin F-201 - Manual (Page 74)

Description of the data path
MARLIN Technical Manual V2.4.0
74
Within this area, the R-G-B component values of the samples are added and
used as actual values for the feedback.
The following drawing illustrates the AUTOFNC_AOI settings in greater detail.
The algorithm is based on the assumption that the R-G-B component sums of
the samples shall be equal, i.e., it assumes that the mean of the sampled grid
pixels is to be monochrome.
Note
L
If the adjustment fails and the work area size and/or position
becomes invalid this feature is automatically switched off -
make sure to read back the ON_OFF flag if this feature doesn't
work as expected.
Figure 39: AUTOFNC_AOI positioning
AO
I: Y-
siz
e
AOI: X-size
AF_AREA_SIZE: Width: n x 128
A
F
_ARE
A_
S
IZ
E
:
H
eig
ht: n x
12
8
0,0
AF_AREA_POSITION: Left,Top
Sampling grid for Auto-Function