55
NED
XCM4040DLMT4
UME-0048-03
4.11.1 Command Settings
Set the correction on or off, acquire user white correction data by sending
commands through serial communication.
Examples of command settings
shc 0,200:
No correction
shc 1,200:
Factory white correction
shc 2,200:
User white correction
wht:
Acquisition of user white correction data
4.11.2 How to correct
(1) Remove the lens cap and place a white object. Then you can acquire user white
correction data. With a lens, the shading by both the lens and the light source will be
simultaneously corrected. At this time, please defocus a little to avoid being affected
by the non-uniformity of the object.
(2) Send the “wht
CR
” command through serial communication.
(3) Confirm that the camera returns “>OK” and “>wht”. Thus user white correction
data is saved and loaded to the camera.
(4) Send the “shc 2 VAL
CR
” command through serial communication. Then the user
white correction will be on and set the correction level as “VAL”.