User`s manual

Smart Features
6-24 BASLER A620
f
DRAFT
Please look at the next page and examine the layout of the control and status register for the
lookup table smart feature. You will notice that the first two quadlets of the register include bits that
allow you to check for this feature’s presence and to enable or disable the feature. These initial
two quadlets are followed by 1024 quadlets. The 1024 quadlets contain the values that make up
the customized lookup table.
L
The lookup table smart feature can only be used when the camera is set to output
pixel data at 8 bit depth.
The camera’s processing block provides the 10 bit depth pixel values that will be input
into the lookup table. Since the processing block performs the camera’s gain and off-
set functions, the gain and offset settings will affect the image even when the lookup
table smart feature is enabled.
When the lookup table feature is enabled, the maximum allowed gain setting is 740
(0x2E4). However, we strongly recommend that when using the lookup table feature,
you limit the gain setting to a maximum of 125 (0x07D). Setting the gain to 125 or less
guarantees that the full range of 10 bit input values will be available for mapping to 8
bit values.
The lookup table smart feature does not add information to the image data stream
and can be accessed even when the extended data stream feature (see Section
6.7.1) is disabled.
When you enable the lookup table feature, the 1024 quadlets that represent the
lookup table are automatically populated with default values. If you want use a cus-
tomized lookup table you must:
1. Use the Control and Status Register (CSR) for the lookup table feature to enable
the feature.
2. Use the lookup table CSR to load the values for the customized lookup table.
The lookup table feature will work when the camera is set for any valid video format.