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8.3.
LUT
This function can be used to convert the input to the desired output characteristics.
The Look-Up Table (LUT) has 256 points for setup. The output level can be created by multiplying the
gain data by the input level.
8.3.1
LUT Enable
Can be selected from OFF, Gamma or LUT Table.
8.3.2
LUT Index
This represents the "starting" or "input" pixel value to be modified by the Lookup Table. The
SP-20000-CXP2 has a 256-point Lookup Table, meaning the index points are treated like an 8bit image
with 0 representing a full black pixel and 255 representing a full white pixel. The index points are
automatically scaled to fit the internal pixel format of the camera. This is common for all output
configuration.
8.3.3
LUT Value
This is the "adjusted" or "output" pixel value for a given LUT index. It has a range of 0 to 4095 (12-bit)
and is automatically scaled to the bit depth of the current operating mode (8-bit or 10-bit).
Note: linear interpolation is used if needed to calculate LUT values between index points. In the color
mode, the LUT function works the same regardless of the color of the pixel.
Output Data = Video IN x LUT data
8.3.4
Associated GenICam register information
Table – 59
Associated GenICam register information
GenICam Name
Gamma
JAI LUT Mode
LUT Selector
LUT Index
LUT Value
SP-20000M-CXP2 / SP-20000C-CXP2
Average
画素欠陥が
compensation
Fig.39
LUT data processing method
Access
R/W
0 to 15
Off
R/W
Gamma
LUT
Mono (for mono)
R/W
Red/Green/Blue (for Color)
R/W
0 to 255
R/W
0 to 4095
If there is no data, use
adjacent data on both sides
data
is
used
Values
- 72 -
for
Category
Analog Control
Analog Control
LUT Control
LUT Control
LUT Control
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