e2v ELIIXA+ 16K/8K CXP MONO, Руководство пользователя

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7.8 Look Up Table
The User can define an upload a LUT in the Camera that can be used at the end of the processing.
The LUT is defined as a correspondence between each of the 4096 gray levels (in 12 bits) with another
outputted value. For example, a “negative” or “reverse” LUT is the following equivalence :
Real value Output value
0 4095
1 4094
2 4093
…
Then the size of each value is 12bits but the exchanges with the Application/PC are done on 16 bits :
For 4096 gray levels (from 0 to 4095) the total file size for a LUT is 8Ko.
If this LUT is enables, the “Contrast Expansion” feature (digital Gain and Offset) will be disabled
Feature CXP @ Size
in
bytes
R/W Description
LUTEnable 0x08A00 4 RW 0 : Disable LUT (“False”)
1 : Enable LUT (“True”)
LUTValueAll 0x30000 8K RW Memory containing LUT on 12 bits
Size=2^12 * 2
LUTValueSize Xml 2 RO Integer providing LUT value size in byte
There is no software or interface provided even through GenICam to Upload/Download the
Look Up Table in the Camera.
GenICam just provides an access to the corresponding Memory area in the Camera
(LUTValueAll in the Register table above)
7.8.1 Save & Restore LUT in User Memory Banks
Feature CXP @ Size
in
bytes
R/W Description
RestoreLUTFromBank 0x08C08 4 RW Restore current LUT from LUT bank number <val>, from 1
to 4; <val> comes from LUTSetSelector
1,2,3,4 : User Bank
SaveLUTToBank 0x08C0C 4 WO Save current LUT to LUT bank number <val>, from 1 to 4;
<val> comes from LUTSetSelector
1,2,3,4 : User Bank
LUTSetSelector Xml - LUT bank selector