Blemishcompensation - IAI GOX-2402M-USB User Manual

BlemishCompensation

Multiple defective pixels that are not adjacent to each other can occur on conventional
CMOS sensor cameras.
This camera features a function that interpolates defective pixels using the surrounding
pixels. Up to 256 pixels can be corrected. Pixel interpolation can be performed via
automatic detection or point-by-point manual settings.
■ Automatic detection
Automatic detection can only detect lit defective pixels (i.e., white blemishes).
1
Shield the camera sensor.
If a lens is attached, use the lens cap as a shield, for example.
2
Configure the threshold level for defective pixel detection.
Up to 256 pixels can be corrected. The threshold value is specified as a
percentage. The default setting is "10" with 10% of the full scale (100%)
specified as the threshold value.
3
Execute [BlemishDetect] to start automatic detection.
After detection, the interpolation data is saved to the camera's internal memory.
To check the number of interpolated pixels after automatic detection
You can check the number of pixels interpolated via automatic detection by loading
the BlemishNum data.
■ Manual configuration
1
Select the index in [BlemishCompensationIndex].
You can select from 1 to 256. However, configure the indexes in order starting
with the smallest index. If you skip indexes while configuring settings,
interpolation may not be performed.
2
Specify the pixel points for interpolation using the
[BlemishCompensationPositionX] and [BlemishCompensationPositionY]
settings.
You can configure values that are within the total effective pixel area. Specify
pixels for which interpolation is not necessary as -1. If 0 is specified, the first
line or first pixel will be interpolated.
Note
BlemishCompensationDataClear[BlemishCompensationIndex], you can return
a specific pixel correction setting to the default value (storage not required).
3
Execute [BlemishStore].
Blemish compensation data will be stored.
4
Set [BlemishEnable] to [True], and execute interpolation.
If it is set to [False] , Blemish compensation is not effective.
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Go-X Series USB3 Vision I/F