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XCM2080SAT4
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XCM2040SAT4
UME-0006-04
4.12.1 How to calibrate the camera
(1) Remove the lens cap and point it at the white illumination, in order to set a
uniform wave level. Then you can acquire arbitrary white correction data. With a
lens, the shading by both a lens and a light source will be simultaneously corrected.
At this time, please defocus a little to avoid being affected by the un-uniformity of
the object.
(2) Send the
“wht CR” command through serial communication.
(3) Confirm that the camera returns
“>OK” and “>wht”. Thus arbitrary white
correction data is saved and loaded to the camera.
(4) Send the
“shc 2 VAL2 CR” command through serial communication. Then the
arbitrary white correction will be on and set the correction level as
“VAL2”.
Notes:
1) The numerical value of 0
～
1023
is input to above mentioned “Val” as a user
correction target value.
2) The user correction target value is not full-
scale output if it doesn’t make it to a
value that is a little larger than the acquired picture brightness.
