User`s manual

AW00098504000 Features
Basler ace Camera Link 185
The advantage of the luminance lookup table feature is that it lets a user customize the response
curve of the camera. The graphs below represent the contents of two typical lookup tables. The first
graph is for a lookup table where the substitute values are designed so that the output of the camera
increases linearly as the actual sensor output increases. The second graph is for a lookup table
where the substitute values are designed so that the camera output increases quickly as the actual
sensor output moves from 0 through 2048 and increases gradually as the actual sensor output
moves from 2049 through 4096.
Fig. 57: Lookup Table with Values Mapped in a Linear Fashion
If the imaging sensor bit depth is set to 10 bits, the sensor will only capture pixel
data at 10 bit depth. In this case, the pixel values output from the sensor wil be
converted to 12 bit depth by padding the 10 bit values with two zeros as least
significant bits. These converted 12 bit values will then be used as input to the
lookup table.
There is only one lookup table. When the lookup table is enabled on color
cameras, the single table is used for red, green, and blue pixel values.
The values for the luminance lookup table are not saved in the user sets and are
lost when the camera is reset or switched off. If you are using the lookup table
feature, you must reenter the lookup table values after each camera startup or
reset.
0 1024 2048 3072 4095
Actual 12 Bit Sensor Value
0
1024
2048
3072
4095
Substitute
12 Bit
Value