Pantera SA 2M30 - Frame Grabbers

Pantera SA DS -21-02M30 and DS-22-02M30 User’s Manual 68
Table 19: Pre-Set LUT Overview
Recommended Camera Operating Conditions
Load LUT
Command
Analog Gain
Setting (dB)
Analog Offset (DN)
Tap 1 Tap 2 Tap 1 Tap 2
flm 1 0 0 10 10 25
flm 2 6 6 11 11 25
flm 3 12 12 21 21 25
Front Plate
Temp. (°C)
To load a pre-set LUT:
1. Set the factory LUT mode to one of the three settings outlined in Table 19 using the
command flm i where i is the LUT mode to use.
Once the factory LUTs are enabled, the camera digital gain (ssg t i command) and
background subtract (ssb t i command) may be used, if desired, but values entered for
both taps must be the same. This preserves the tap matching performance while still
allowing post-Input LUT digital adjustment of gain and offset. Using different values for
each tap will degrade tap matching performance.
In addition, while you are using a pre-set LUT, commands for setting analog gain, analog
offset, retrieving input LUT, and enabling input LUT are disabled. You can, however, still
store factory LUT values as custom LUT values using the input LUT command wil i
where i is the LUT number, either 1 or 2.
C2 Creating a Custom Input LUT
If you want to operate the camera at a gain setting that is different from those defined in
the pre-set factory LUTs, you can optimize tap-matching performance by creating your
own LUT. You can store up to two separate custom input LUTs using the command wil
i where i is the LUT number, either 1 or 2.
Calibration of the LUTs takes into account the following operating conditions: analog
gain, analog offset, temperature and illumination conditions on two measurement areas
for the two taps. Calibration and the resulting camera performance is based solely upon
the two measurement areas and is not generalized to the image array outside of such
areas.
To create a custom LUT, you will need to complete the steps outlined in the following
section. In order to complete the following steps, you require the LUT Calibration
spreadsheet available at http://vfm.dalsa.com/docs/docs.asp in the Software folder.
Note that if you have not done so already, you must register as a member of the DALSA
Web site to access this folder.
DALSA 03-32-10150-01