GO-5000M-USB / GO-5000C-USB
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Before adjustment After adjustment
Fig.36 Color shading correction concept drawing
Note: Under the following conditions, the shading correction circuit may not work properly.
If there is some area in the image with a video level less than 70%
If part of the image or the entire image is saturated
If the highest video level in the image is less than 300LSB (at 10-bit output)
9.5.2
Shading Mode
Shading mode
Description
Off
Shading correction is OFF.
User 1
The correction data in user area 1 is stored or loaded to the camera
User 2
The correction data in user area 2 is stored or loaded to the camera
User 3
The correction data in user area 3 is stored or loaded to the camera
9.5.3 Perform Shading Calibration
This is a .exe command to execute a shading correction. The correction data after executing the
shading correction is automatically stored in the used user area.
9.6. Blemish compensation
The GO-5000M-USB and GO-5000C-USB have a blemish compensation circuit. This function
compensates blemishes on the CMOS sensor (typically pixels with extremely high response or
extremely low response). This applies to both monochrome and color versions. Pixels that fulfill the
blemish criteria can be compensated by adjacent pixel in left column and, in the case of the
GO-5000C-USB, the defective pixel can be compensated by the same Bayer color pixel in left
adjacent column. Please refer to the following drawing. As for white blemishes, the automatic
detection function is available and after its execution, the data is stored in memory. The customer
can use the data by setting the blemish compensation ON. For black blemishes, only compensation
that has been done in the factory is available. The number of pixels that can be compensated by the
user is up to 256 pixels.
